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Ac Error Codes Trouble Shooting

Expert Troubleshooting for AC Error Codes. Quickly diagnose and resolve issues with our professional support to keep your air conditioning running smoothly year-round.

LG Ac Error Code
LG Ac Error Code

  • Error Code: LG AC F1, F2, F3
  • Error Code: LG Air Conditioner P2 or FL Codes
  • Error Code: P2 or FL – Water Tank Full Error
  • Error Code: P2 or FL Code Keeps Recurring
  • Error Code: P2 or FL Code Without the Water Draining Out
  • Error Code: P2 or FL Code Does Not Clear After Draining the Water
  • P2 or FL Code Displays, and the Unit Does Not Shut Off
  • E1 or CH02 – Auto Stop Protection Error
  • E2 or CH01 – Auto Stop Protection Error
  • E3 or CH03 – No Refrigerant
  • E4 – Defrost Mode
  • E5 – Water Tank Full
  • HI or LO – Temperature Indication
  • SP/CP/PO Codes – Function Codes
  • ON- Function Code
  • CH44 – Sensor Error
  • CH32 – High Discharge Temperature
  • CH12 – Indoor Pipe Temperature Sensor Error
  • CH05 or CH53 – Communication Error Code
  • CH38 – Low Refrigerant Detection
  • CA or CH10 – Faulty Discharge Thermistor Error

Error Code: LG AC F1, F2, F3

Reason: This implies the fact that the Air conditioner is working at fan mode and the numbers indicated imply the fan speed. This way, one can be assured that the rest of the functions of the Air Conditioner is working just fine.

Error Code: LG Air Conditioner P2 or FL Codes

Reason: When facing this error code display, you must understand that the water collection tank has arrived at its full capacity. For this, the simple solution is to empty the water tank, and you are done.

Error Code: P2 or FL – Water Tank Full Error

Reason: This indicates the water tank issue and is detrimental to the model and type of the Air conditioner. This is also an indication of the fact that the drain pan located in the outdoor unit is full. In such a situation, most models are designed so that the slinger fan above the drain pan will empty it. This occurs by slinging the water off to the condenser, and the heat is discharged as a result. Most times, the water accumulation is avoided.

Error Code: P2 or FL Code Keeps Recurring

Once again, this is a water overload tank issue that can occur in an LG Air conditioner. When this happens, you can simply tilt the AC after you have removed the drain, Port Cap. However, if and when this error keeps reoccurring, when your AC mode is in ‘COOL,’ then it means that the Humidity in the room is more; nonetheless, your Air conditioner is alright, and you do not need to splurge a heavy amount for servicing! To fix this problem by yourself, you can simply set the fan mode to ‘LOW.’ Hence, you do not have to drain your AC unit repeatedly. Shutting the windows and doors also helps maintain the proper functioning of the Air conditioner. If the DRY mode occurs in the unit repeatedly, you need to remove the moisture from the air. For this, simply change the setting to COOL and reduce the elimination of the moisture.

Error Code: P2 or FL Code Without the Water Draining Out

In this case, it means that your Air conditioner requires genuine servicing, and tilting the unit to drain the water does not helps.

Error Code: P2 or FL Code Does Not Clear After Draining the Water

In case this error occurs, you need to reset the AC unit. For this, unplug the unit and keep it that way for approximately 10 minutes. After this, plug it back and restart your appliance. If the error code reoccurs, you need a serviceman to check it out for you.

P2 or FL Code Displays, and the Unit Does Not Shut Off

When this error code keeps reoccurring, it means that your Air conditioner requires repairing by a professional.

Let us take a look at some of the other LG Inverter AC Error Codes:
CH32 – High Discharge Temperature

Cause: This error code is displayed in case of high discharge temperatures. This implies the fact that the unit has low refrigerant levels.

Solution: Professional help is required.
CH12 – Indoor Pipe Temperature Sensor Error

Cause: This error code is displayed when the indoor pipe temperature measures a temperature out of range. This is more of a protective measure.

Solution: Professional help is required.
CH05 or CH53 – Communication Error Code

Cause: This error indicates the lack of communication between the IDU and ODU. This can be because of the disconnection of the cable, circuit faults, T-phase line disconnection, or insufficient distance between the power and the communication cables.

Solution: Professional help is required.
CH38 – Low Refrigerant Detection

Cause: This detects a low level of refrigerant and is protective.

Solution: The reason can be electrical instability. For this, one can simply unplug the device and restart it after five minutes. If the error persists, then you need to get some professional help.
Error Code: P2 or FL Code Without the Water Draining Out

In this case, it means that your Air conditioner requires genuine servicing, and tilting the unit to drain the water does not helps.

CA or CH10 – Faulty discharge Thermistor Error

Cause: Occurs when the discharge temperature reaches more than 130 degrees C.

Solution: Get professional help.
Voltas Ac Error Code
Voltas Ac Error Code
    Voltas AC Error Code List Here is a list of the error codes and how to resolve them:
  • Error Code: E1, E2, F7, F1 – Indoor Room Sensor Fault

    The latest models of the Voltas Ac comprise sensors in both indoor and outdoor units. These help the users decide the temperature they would like to enjoy. Also, this feature helps calculate the workload of the Air Conditioner. Hence, it helps the AC to set the right kind of cooling temperature. The above error codes signify that the fault is in the indoor room sensor.

    • Solution: This error cannot be resolved by the users themselves. Hence it is recommended that they contact a reputed Voltas service person.
  • Error Code: E4, F6, H6, E5 – Indoor Blower Motor Fault

    Also known as the fan motor, the indoor blower motor functions to regulate the fan speed, ensuring uniform air distribution inside the room. The error above signifies the fault with the indoor blower. This usually occurs when the capacitor of the appliance grows weak and needs to be replaced.

    • Solution: This error cannot be rectified and needs a professional Voltas service person to resolve it.
  • Error Code:E6, E5 – Over Current Protection

    One must bear in mind that the Voltas AC functions on varying voltage. However, there are times when the input voltage exceeds the AC’s operational range. This code denotes the voltage fluctuations.

    • Solution: For this, you need to wait for the voltage to stabilize and restart the AC again. This should resolve the error. In case it continues, you need to get in touch with the professional Voltas service person, as there can also be a fault with the PCB circuit.
  • Error Code: E0, 1-Time Blink – Indoor Unit EEPROM Parameter Fault

    This is a technical error, and it indicates that there is a fault with the indoor unit EEPROM parameter. The reason is generally that of the soldering being loosened.

    • Solution: It is recommended to contact the Voltas technician for professional help.
  • Error Code: E1, 2-Time Blink – Indoor – Outdoor Communication Fault

    The outdoor and indoor units of the Voltas AC are connected with the help of various pipes and wires. There are chances that the connecting wires might have snapped.

    • Solution: for this, it is recommended that the user checks the wiring and rectifies the communication error. In case the wirings have snapped, it is recommended that you replace the same. If you cannot do this yourself, you can get a professional technician to do this for you.
  • Error Code: E2, 3-Time Blink – Zero Current Crossing Fault

    This error occurs when there occurs a fault in the general AC wiring that does not allow the current to flow through. This is also called a zero current crossing fault, which means that there is no flow of current into the AC unit.

    • Solution: To resolve this, it is recommended that you check the wiring and rectify the same. If you cannot perform the fixing by yourself, get professional help.
  • Error Code: E3, 4-Time Blink – Indoor Fan Speed Out of Control

    This error is much similar to the indoor blower motor error. In this case, the speed of the fan goes out of control. This can result in it spinning too fast or much slower than expected. Hence, the overall cooling performance of the AC is affected. A fault in the capacitor or the fan’s motor could also be the reason.

    • Solution: The solution for this error is to replace the sensor altogether. For this, you will need to get in touch with the Voltas technician.
  • Error Code: E4, 5-Time Blink – Indoor Temperature Sensor Fault

    The Air conditioner works by the indoor sensor sensing the indoor temperature to be set into the optimum cooling temperature. This error signifies that there is a fault in the indoor temperature sensor.

    • Solution: The only way to resolve the issue is to replace the sensors. For this, get in touch with the professional Voltas technician, and you will be just fine.
  • E5, 6-Time Blink – Indoor Coil Sensor Fault

    This error code signifies that there is a fault in the indoor coil sensor.

    • Solution: for this, it is recommended that you get in touch with a professional technician and let them do the needful.
  • EC, 7-Time BLink – Refrigerant Leak

    This error code denotes that the refrigerant tank is suffering from a leak situation. For this, you must replace the leaking pipes. Also, you need to check by filling the gas and checking the pressure levels.

    • Solution: This Voltas error code troubleshooting can only be done by a professional, so get in touch with the Voltas professional and rectify the situation.
  • E4 – Defrost Mode
  • F0, 1-Time Blink – Overload Current Protection

    This is among the Voltas split ac error codes, which commonly occur when there is a power fluctuation occurring. For this, you need to check out the current load in order to ensure that the appliances are not overloading due to a specific power source.

    • Solution: The user should check for the wiring and the Voltage levels. Also, it is suggested that you have a separate current point for the AC and not use it for any other appliances.
  • F1, 2-Time Blink – Outdoor Temperature Sensor Fault

    The outdoor temperature sensors function by sensing the external temperatures before the optimal cooling temperatures have been set. You will find this sensor behind the condenser in the outdoor unit.

    • Solution: This error requires a professional to deal with it and rectify the same.
  • F2, 3-Time Blink – Outdoor Condenser Sensor Fault

    This is among the Voltas inverter AC error codes and is related to the outdoor unit. This shows that there is a fault with the outdoor condenser sensor.

    • Solution: For this, you need to get in touch with the Voltas AC professional technician as it requires the replacement of the discharge pipe sensor.
  • F3, 4-Time Blink – Discharge Pipe Sensor Fault

    The outdoor unit comprises an outdoor discharge pipe with a sensor. Any fault in this [art can result in this error from the Voltas non-inverter AC error code list, for this one needs to replace the discharge pipe sensor with a new one.

    • Solution: Get in touch with a professional technician to rectify the issue.
  • F4, 5-Time Blink – Outdoor EEPROM Parameter Fault

    This error code is related to the fault in the Outdoor EEPROM parameter.

    • Solution: For this, one has to seek professional help.
  • P1, 2-Time Blink–Over and Low Voltage Fault

    This error code signifies a fault with the input voltage, which can either be low or high. This will cause the AC to not function as the input voltage will fluctuate beyond the operating voltage.

    • Solution: Check for the voltage levels and use a voltage stabilizer.
Blue Star Ac Error Code
Blue Star Ac Error Code
    The Blue Star AC Blue Star AC Error Codes List
    For the Window AC – L Series
  • Error Code: E1 – Room Sensor Failure

    This occurs due to the malfunction of the PCB or a loose connection. To rectify this, it is recommended that you call a professional technician.

  • Error Code: E2 – Evaporator Coil Sensor Failure

    This error occurs due to a fault in the evaporator coil sensor. The best solution is to reconnect or replace the sensor.

    • For Window AC – G – Series
  • Error Code: E1 – Room Sensor Failure

    To rectify this error, you might need to repair or reconnect the sensor.

  • Error Code: E2 – Evaporator Coil Sensor Failure

    Once again, replacement or repair of the Sensor coil is the perfect solution.

    • For Window AC – Y, R, and M Series
  • Error Code: Er – Indoor Ambient Temperature Sensor Failure

    This error occurs when the heat within the AC tends to melt the Sensor terminal and lead them to disconnect. For this, you will need to reconnect or replace the sensor altogether.

  • Error Code: En – Evaporator Pipe Temperature Sensor Failure

    This error indicates the sensor failed due to erratic changes in the temperature levels.

Carrier Inverter Ac Error Code
Carrier Ac Error Code
  • Error Code: EO: (OL 1 Times)

    Indoor unit EEPROM parameter error.

  • Error Code: E1: (OL 2 Times)

    Indoor / outdoor units communication error.

  • Error Code: E3: (OL 4 Times)

    The speed of the indoor fan has gone out of control.

  • Error Code: E4: (OL 5 Times)

    Indoor room temperature sensor T1 open circuit or short circuit.

  • Error Code: E5: (OL 6 Times)

    Evaporator coil temperature sensor T2 open circuit or short circuit.

  • Error Code: EC: (OL 7 Times)

    Refrigerant leak detection.

  • Error Code: F1: (OL 2 Times, TL on)

    Outdoor ambient temperature sensor T4 open circuit or short

  • Error Code: F2: (OL 3 Times TL on)

    circuit. Condenser coil temperature sensor T3 open circuit or short circuit.

  • Error Code: F3: (OL 4 Times, TL on)

    Compressor discharge temperature sensor T5 open circuit or short circuit.

  • Error Code: F4: (OL 5 on)

    Outdoor unit EEPROM parameter error.

  • Error Code: F5: (OL 6 on)

    The speed of the outdoor fan is out of control.

  • Error Code: P0: (OL 1 flash)

    Strong current protection over IPM malfunction or IGBT.

  • Error Code: P1: (OL 2 flash)

    Over voltage or low voltage protection.

  • Error Code: P2: (OL 3 flash)

    High temperature protection of compressor top diagnostics and solutions.

  • Error Code: P4: (OL 4 flash)

    Inverter compressor drive error.

  • Error Code: F8: (OLF 9 Times)

    Compressor Suction Temperature sensor defective.

  • Error Code: L3: (OLF 33 Times)

    Drive Phase current overload defective.

  • Error Code: L4: (OLF 34 Times)

    Phase Current Sampling defective.

  • Error Code: FO: (OLF 13 Times)

    Outdoor AC Current protection.

  • Error Code: L1: (OLF 31 Times)

    Drive bus voltage overload protection.

  • Error Code: L2: (OLF 32 Times)

    Drive bus voltage overflow protection.

  • Error Code: P5: (OLF 14 Times)

    Compressor phase current protection.

  • Error Code: P6: (OLF 16 Times)

    Outdoor over high/over-low DC voltage protection.

  • Error Code: P7: (OLF 17 Times)

    IPM Temperature over heat protection.

  • Error Code: P8: (OLF 18 Times)

    Compressor discharge Temperature overheat protection.

  • Error Code: P9: (OLF 19 Times)

    Cooling indoor Unit anti-freezing protection.

  • Error Code: PU: (OLF 20 Times)

    Cooling Outdoor Coil over heat protection.

  • Error Code: PE: (OLF 21 Times)

    Heating indoor coil over heat protection.

  • Error Code: PC: (OLF 22 Times)

    Cooling outdoor ambient Temperature over-low protection.

  • Error Code: PH: (OLF 23 Times)

    Heating outdoor ambient Temperature over-high protection.

  • Error Code: E2: (OLF 27 Times)

    Zero crossing signal detection error.

  • Error Code:Acronyms

    OLF= Outdoor LED Flash, OL = Operation Lamp, TL = Timer Lampssssss

Samsung Ac Error Code
Samsung Ac Error Code
  • Error Code: E1

    Indoor/outdoor units communication error:
    This error code denotes a breakdown in communication between the AC’s indoor and outside components.
    Wiring issues, loose connections, or faulty PCB are all potential culprits.
    Steps for troubleshooting: Inspect the wiring and connections, reset the AC, and, if necessary, replace the PCB.

  • Error Code: E2

    Error detecting zero crossing:
    This error code denotes an issue with the power supply for the AC.
    Possible causes include an erratic power supply, defective electrical parts, or a damaged PCB.
    Steps for troubleshooting: Check the power supply, replace any defective parts, and, if necessary, replace the PCB.

  • Error Code: E3

    High-pressure protection error:
    This error code denotes that the high-pressure switch for the AC has been turned on.
    Possible causes include a clogged or dirty condenser, a lack of refrigerant, or a broken outdoor fan motor.
    Steps for troubleshooting: Clean the condenser, check the amount of refrigerant, and, if necessary, replace the exterior fan motor.

  • Error Code: E4

    Low-pressure protection error:
    This fault code indicates the activation of the low-pressure switch on the AC.
    Possible causes include a clogged filter, leaking refrigerant, or a broken indoor fan motor.
    Steps for troubleshooting: Look for refrigerant leaks, clean or replace the filter, and, if necessary, replace the indoor fan motor.

  • Error Code: E5

    Inoperative outdoor temperature sensor or open circuit:
    This error code indicates an issue with the external temperature sensor.
    Possible reasons include faulty wiring, a bad sensor, or a broken PCB.
    Steps for troubleshooting: Check the cabling and connections, replace the sensor if necessary, and replace the PCB as part of the troubleshooting process.

    • Samsung Inverter AC Error Code List: 2023 Updated

    We’ll give a thorough rundown of all the Samsung inverter AC error codes in the next section, along with explanations for each one.

    Explore solutions for noisy air conditioners and other related issues in this guide on fixing a noisy air conditioner.

  • E101: Indoor and outdoor unit communication fault
  • E102: Wired remote controller and interior unit communication error
  • E103: Wireless remote controller and indoor unit communication fault
  • E104: Communication fault between the fan motors of the indoor and outside units
  • E105: Indoor unit and outdoor unit compressor communication fault
  • E106: Indoor unit and outside unit communication error PCB
  • E107: Indoor unit and outside unit compressor communication fault PCB
  • E108: Outside fan motor communication problem between indoor and outside units PCB
  • E109: Indoor fan motor indoor unit and exterior unit communication error PCB
  • E201: Zero-crossing detection
  • E202: IPM protection problem code
  • E203: Compressor high-pressure problem, code
  • E204: Compressor low-pressure fault code
  • E205: Outdoor unit fan motor
  • E206: Indoor unit fan motor fault code
  • E301: Error with the indoor heat exchanger temperature sensor
  • E302: Indoor unit room temperature sensor
  • E303: Heat exchanger temperature sensor on the outdoor unit
  • E304: Error with the outdoor unit pipe temperature sensor
  • E401: Indoor unit and wired controller communication fault
  • E402: Indoor unit and wireless controller communication error
  • E901: Memory fault
  • E902: Data storage error
hitachi Ac Error Code
Hitachi Ac Error Code
    Hitachi Self-Diagnostic Malfunction Error Codes

    P01: Pressure ratio protection control

    P02: High pressure increase protection

    P03: Inverter current protection

    P04: Inverter fin temperature increase protection

    P05: Discharge gas temperature increase protection at the upper part of the compressor

    P06: Low pressure decrease protection

    P09: High pressure decrease protection

    P0A: Demand current protection control

    P0d: Low pressure increase protection

    P11: Pressure ratio decrease retry

    P12: Low pressure increase retry

    P13: High pressure increase retry

    P14: Constant speed compressor overcurrent retry

    P15: Discharge gas temperature increase retry / Low pressure decrease retry

    P16: Discharge gas super-heat decrease retry

    P17: Inverter anomaly retry

    P18: Abnormal Inverter voltage retry / Inverter failure retry

    P26: High pressure decrease retry

    Alarm Codes and Content of Abnormality

    01: Tripping of Protection Device - Failure of Fan Motor, Drain Discharge, PCB, Relay.

    02: Tripping of Protection Device - Activation of PSH.

    03: Abnormality between Indoor (or outdoor) and Outdoor (or Indoor) - Incorrect Wiring. Failure of PCB. Tripping of Fuse. Power Supply OFF.

    04: Abnormality between Inverter and Control PCB - Failure in Transmission between PCBs.

    05: Abnormality of Power Source Wiring - Reverse Phase Incorrect Wiring.

    06: Voltage Drop by Excessively Low or High Voltage to Outdoor Unit - Voltage Drop of Power Supply, Incorrect Wiring or Insufficient Capacity of Power Supply Wiring.

    07: Decrease in Discharge Gas Superheat - Excessive Refrigerant Charge, Expansion Valve Open Lock.

    08: Increase in Discharge Gas Temperature - Insufficient Refrigerant. Ref. Leakage, Clogging or Expansion Valve Close Lock.

    09: Tripping of Protection Device - Failure of Fan Motor.

    11: Inlet Air Thermistor - Failure of Thermistor, Sensor, Connection.

    12: Outlet Air Thermistor - Failure of Thermistor, Sensor, Connection.

    13: Freeze Protection Thermistor - Failure of Thermistor, Sensor, Connection.

    14: Gas Piping Thermistor - Failure of Thermistor, Sensor, Connection.

    19: Failure of Fan Motor - Failure of Fan Motor.

    21: High Pressure Sensor - Failure of Thermistor, Sensor, Connection.

    22: Outdoor Air Thermistor - Failure of Thermistor, Sensor, Connection.

    23: Discharge Gas Thermistor on Comp - Failure of Thermistor, Sensor, Connection.

    24: Evaporating Thermistor - Failure of Thermistor, Sensor, Connection.

    29: Low Pressure Sensor - Failure of Thermistor, Sensor, Connection.

    30: Incorrect Wiring Connection - Incorrect Wiring Connection between Outdoor Unit, CH Unit and Indoor Unit.

    31: Incorrect Setting of Outdoor and Indoor Unit - Incorrect Setting of Capacity Code.

    32: Abnormal Transmission of Other Indoor Unit - Failure of Power Supply, PCB in Other Indoor Unit. Failure of Other Indoor Unit of the Same Refrigerant Cycle.

    35: Incorrect Setting in Indoor/Outdoor Unit No - Existence of the same Indoor Unit No. in the same refrigerant cycle.

    38: Abnormality of Protective Circuit in Outdoor Unit - Failure of Indoor Unit PCB. Incorrect Wiring Connection to PCB in Outdoor Unit.

    39: Abnormality of Running Current at Constant Compressor - Overcurrent, Melted Fuse of Failure of Current Sensor.

    43: Pressure Ratio Decrease Protection Activating - Failure of Compressor, Inverter.

    44: Low Pressure Increase Protection Activating - Overload to Indoor in Cooling, High Temperature of Outdoor Air in Heating Expansion Valve Open Lock.

    45: High Pressure Increase Protection Activating - Overload Operation. Excessive Refrigerant Clogging of Heat Exchanger.

    46: High Pressure Decrease Protection Activating - Insufficient Refrigerant.

    47: Low Pressure Decrease Protection Activating - Insufficient Refrigerant. Expansion Valve Close Lock. Refrigerant Leakage.

    51: Abnormality of Current Sensor for Inverter - Failure of Sensor on Inverter PCB.

    52: Overcurrent Protection Activating - Overload, Overcurrent, Locked to Compressor.

    53: IPM Protection Activating - Automatic Stoppage of IPM.

    54: Increase in Inverter Fin Temperature - Abnormal Inverter Fin Thermistor, Abnormal Outdoor Fan.

    56: Abnormality of Detection for Fan Motor Position - Abnormal Detection Circuit of Transmission.

    57: Fan Controller Protection Activating - Abnormal Fan Speed.

    58: Abnormality of Fan Controller - Overcurrent, Abnormal Fan Controller Fin.

    59: AC Chopper Circuit Protection - Failure of FET, Power Supply, CT for Fan Motor.

    EE: Compressor Protection - 3 Time Occurrence of Alarm Giving Damage to Compressor within 6 hours.

    dd: Incorrect Wiring between Indoor Units - Incorrect Wiring between Indoor Units and Remote Control Switch.

    Hitachi Remote Control Display Meaning Hitachi Air Conditioner Remote Controller Alarm Codes

    Remote Controller-Model: PC-2H2

    Hitachi AC Error Codes and Troubleshooting

    Alarm Codes and Causes

    01: Safety Device of the Indoor Unit is tripped (internal Thermostat, *Float Switch)

    02: 1. Safety Device of the Outdoor Unit is tripped (High pressure switch, Internal Thermostat for Outdoor Fan Motor and Overcurrent Relay) 2. Safety Device of the Outdoor Unit is tripped (Overcurrent Relay, Compressor Chamber Thermostat, High Pressure Switch and Internal Thermostat for Outdoor and Indoor Fan Motor)

    03: Transmission Abnormality between Indoor Unit and Outdoor Unit

    05: Picking up phase Abnormality

    08: Abnormality High Temperature on the Top of Compressor

    11: Thermistor Abnormality for inlet Air Temperature

    12: Thermistor Abnormality for outlet Air Temperature

    13: Thermistor Abnormality for Freezing Temperature

    20: Thermistor Abnormality for Compressor Top Temperature

    22: Thermistor Abnormality for Outdoor Air Temperature

    24: Thermistor Abnormality for Outdoor Evaporating Temperature (defrosting)

    25: Thermistor Abnormality for Condensing Temperature

    32: Transmission Abnormality between Master and Slave

    38: Abnormality in the Picking up Circuit protection

    41: Excessive Overload during Cooling Operation

    42: Excessive Overload during Heating Operation

    Hitachi Split System Heat Pump AC Error Codes Regarding the retry control, the lastest retry code will be indicated unless the protection control related with the frequency control is indicated.
    Hitachi inverter AC Error Code List

    E0: Water pump malfunction

    E1: High pressure protection of compressor

    E2: Indoor anti-frozen protection

    E3: Low pressure protection of compressor

    E4: Air discharge high-temperature protection of compressor

    E5: Overload protection of compressor or Inverter error

    E6: Communication malfunction

    E8: Indoor fan protection

    E9: Water flow protection

    F0: Malfunction of indoor environment sensor at air return vent

    F1: Evaporator sensor malfunction

    F2: Condenser sensor malfunction

    F3: Outdoor environment sensor malfunction

    F4: Malfunction of air discharge sensor

    F5: Malfunction of environment sensor on displayer

    EH: Auxiliary electric heater malfunction

    H1: Indoor unit fault

    H2: Indoor ambient temperature

    H3: Indoor coil temperature

    H4: Indoor setting temperature

    FE: Communication between main control board and wiring remote controller fault.

    ER: Communication between main control board and display board fault.

    Hitachi AC Remote Control Button Meaning Hitachi RAC Fault Codes-Indoor Units Flashing

    1 Flash: Insufficient heating or cooling. Likely low on refrigerant.

    2 Flashes: Outdoor unit is in forced operation. Not a fault.

    3 Flashes: Indoor/Outdoor communication error. Check interconnecting cable.

    4 Flashes: Outdoor unit error. Check outdoor unit.

    5 Flashes (Mono/Multizone): Indoor fan motor rotation error. Check indoor fan motor.

    5 Flashes (Summit Premium): Power relay error. Check power relay.

    6 Flashes: Drain high water level alarm. Check drains and pump.

    7 Flashes: Drain pump in forced operation. Not a fault.

    8 Flashes: Louver defective. Check louvers and wiring.

    9 Flashes: Indoor thermistor fault. Check air and pipe thermistor.

    10 Flashes: Fan rotation error. Check indoor fan motor.

    11 Flashes: High voltage generator/Ionizer fault. Check high voltage gen/Ionizer.

    12 Flashes: Indoor/Outdoor communication error. Check interconnecting cable.

    13 Flashes: EEPROM error on PCB. Check PCB.

    Hitachi AC Troubleshooting

    This Is Not Abnormal Smells from Indoor Unit; Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good ventilation. Sound from Deforming Parts; During system starting or stopping, an abrading sound might be heard. However, this is due to thermal deformation of plastic parts. It is not abnormal. Steam from Outdoor Heat Exchanger; During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam. Dew on Air Panel; When the cooling operation continues for a long period of time under high humidity conditions (higher than 27°C DB/80% R.H), dew can form on the air panel. Refrigerant Flow Sound; While the system is being started or stopped, sound from the refrigerant flow may be heard. Not Cooling Or Heating Well

    Check for obstruction of air flow of the outside or inside units. Check if too much heat source exists in the room. Check if the air filter is clogged with dust. Check to see if the doors or windows are opened or not. Check if the temperature condition is not within the operation range. Not Operate Check for electrical wiring. Check for dip switch setting. Check whether the “SET TEMP” is set at the correct temperature. In the case that “RUN” lamp on remote control switch is flickering every 2 seconds, check for connection of remote control line. In the case that “RUN” lamp flashes 5 times (5 seconds) with unit number and alarm code displayed, refer to the next item “18.2 Troubleshooting by Alarm Code” and the “Service Manual”. In the case that no alarm code is indicated and normal operation is not available, refer to the “Service Manual” because abnormality of some device is suspected.
lloyd Ac Error Code
Lloyd Ac Error Code

    The Lloyd Air Conditioners Lloyd AC Error Codes List
  • E1: Indoor PCB Fault
  • E2: High and Low Voltage Issue, Room Temperature Sensor Issue
  • E3: Indoor Fan Motor Problem, Pipe Temperature Sensor Fault
  • E4: Defrost Mode, Room Temperature Sensor Fault (5-Time Blink), Outdoor Pipe Temperature Sensor Issue
  • E5: Cooling Coil Sensor Fault, Temperature Sensor Fault, Room Sensor Fault
  • E6: Indoor Coil Sensor Problem, Outdoor Malfunction
  • E7: Condenser Coil Sensor Problem, EEPROM Malfunction
  • E8: Low or High Voltage Problem or Water Level Alarm
  • E9: Indoor to Outdoor Communication Problem
  • CL: Child Lock Activation
  • DF: Defrosting Issue
  • H3: Compressor Overload Issue
  • P3: Insufficient Refrigerant
  • P4: Temperature Indicator Error
  • P9: Display Communication Fault
  • PE: Pressure Switch Broken
  • F1: Non-Inverter AC Room Temperature Sensor Circuit Fault
  • F2: Non-Inverter AC Evaporator Coil Temperature Sensor Circuit Fault
  • H6: IDU Fan Motor Fault in Non-Inverter AC
  • E5: Over Current Protection
  • E8: Overload Malfunction

Here is a list of some of the most common known Error Codes in Llyod Air Conditioners:
  • E1: Indoor PCB Fault

    This Error code implies the fact that there is an issue with the indoor PCB. This might mean that the PCB requires repair and replacement. As Llyod is known to offer a good warranty period, you can easily make the most out of it and get your PCB replaced or repaired.

  • E2: High and Low Voltage Issue, Room Temperature Sensor Issue

    When you have E2 flashing over the display, it implies that the input voltage is higher or lower than the operational range. For this, you can easily get an external Voltage stabilizer or simply wait for the voltage to stabilize. In case of a low voltage condition, you can utilize a double or triple Voltage booster and set the range to up to 220V. In case of a room temperature sensor issue, one can easily get a Llyod professional service professional to replace the sensor. A case of loose connection can also result in this problem.

  • E3: Indoor Fan Motor Problem, Pipe Temperature Sensor Fault

    One of the best features of the Llyod Air conditioner is that it features an indoor fan which is also known as the Blower. This offers uniform cooling effects across the space, hence a better cooling experience. This is among the most common Lloyd Split AC Error Codes and requires you to summon the Llyod service professional. This error code implies the fact that there can be a problem with the Capacitor, and it might require replacement.

  • E4: Defrost Mode, Room Temperature Sensor Fault (5-Time Blink), Outdoor Pipe Temperature Sensor Issue

    This is not exactly an Error code but implies the fact that your unit is going into defrost mode. While the unit might not go to this mode automatically, however, there is a certain activity within the machinery that might lead to this problem. Some of the most common reasons are a broken temperature sensor which might require you to replace the same. However, after the defrosting is done, the error is rectified.

  • E5: Cooling Coil Sensor Fault, Temperature Sensor Fault, Room Sensor Fault

    This error code implies the fact that there might be an ill-fitted temperature or cooling coil sensor. The absence of the sensor altogether can also lead to an error. So, replacing the damaged sensor and ensuring it is well-fitted is recommended.

  • E6: Indoor Coil Sensor Problem, Outdoor Malfunction

    There is a Sensor located in the Llyod indoor unit as well. Hence, the sensor can trigger this Error code if there is a loose connection or a damaged indoor coil. So, to get rid of the error, you simply need to replace the damaged sensors. Checking if they are well fitted into the right socket is also a recommended solution to this error.

  • E7: Condenser Coil Sensor Problem, EEPROM Malfunction

    The condenser of the Llyod Air conditioner is located in the outdoor unit. Once again, this can imply the fact that there is an ill-fitting condenser coil that needs your attention. The solution is to get the condenser coil fitted well or replaced by a professional.

  • E8: Low or High Voltage Problem or Water Level Alarm

    The normal working Voltage range for the Llyod Air conditioner is between 160-220 V. In case the indoor voltage is higher than this range, the unit might stop working altogether. Hence, one can simply install an external Voltage stabilizer to solve this. The other indicator of this Error code is related to the water level. The continuous blinking can refer to the fact that the water levels require professional attention.

  • E9: Indoor to Outdoor Communication Problem

    This Error code implies the fact that there is an electrical problem. To be more precise, it implies the fact that there is a lack of communication between the indoor and the outdoor unit. Hence, the AC fails to work problem. The replacement of wires can resolve this problem.

  • CL: Child Lock Activation

    When you notice this particular Error code, it means that the Child Lock has been activated. To resolve this, simply release the lock and set the unit right.

  • DF: Defrosting Issue

    This implies an error with the defrosting function. For this, you will need professional help.

  • H3: Compressor Overload Issue

    This error code implies that there is a problem with the compressor, probably, an overload issue. For this, you might need to get a professional.

  • P3: Insufficient Refrigerant

    This implies the fact that there is an insufficient Refrigerant in the unit. For this, you might need to check for leakage and repair them. After this, repair the gas and restart the unit.

  • P4: Temperature Indicator Error

    This implies the fact that there is a problem with the temperature indicator of the unit. The other reason can be that there is an inverter compressor is at fault. This is one of the most common Lloyd Inverter AC Error Codes.

  • P9: Display Communication Fault

    This error code implies the fact that there is a communication problem between PCB and the AC display. For this, you might want to get professional help.

  • PE: Pressure Switch Broken

    This code refers to the indication that there is a breakage of the pressure switch. Hence you need to get professional help.

  • F1: Non-Inverter AC Room Temperature Sensor Circuit Fault

    This code refers to the fact that there has been a room temperature sensor circuit failure. For this, get a technician to come over to the checkout.

  • F2: Non-Inverter AC Evaporator Coil Temperature Sensor Circuit Fault

    This code refers to the AC evaporator coil temperature sensor circuit problem. For this, you might need to replace the Sensors altogether.

  • H6: IDU Fan Motor Fault in Non-Inverter AC

    This implies the fact that there is a problem with the fan motor. Also, poor winding can lead to this problem. Get professional help for this issue.

  • E5: Over Current Protection

    This problem occurs due to the sudden surge in the input current. For this, you need to install circuit breakers.

  • E8: Overload Malfunction

    • Panasonic Ac Error Code
    Panasonic Ac Error Code
    • H11: Outdoor/Indoor Abnormal Communication
    • H14: Faulty Inside Air Sensor
    • H15: Faulty Compressor Sensor
    • H16: Transformer Faults
    • H19: Locked Fan Motor
    • H23: Out of Order Inside Pipe Sensor
    • H24: Inside Pipe Temperature Sensor Two Issue
    • H25: E-ion Air Purifying Issue
    • H27: Faulty Outdoor Air Sensor
    • H28: Out of Order Open-Air Pipe Sensor
    • H30: Discharge Temperature Compressor Sensor Issue
    • H33: Incorrect Linking Voltage
    • H97: DC Motor Mechanism Locked
    • H99: Faulty Chill Mode
    • F11: Four-Way Valve Abnormality
    • F90: PPC Failure
    • F91: Refrigerator Cycling Problems
    • F95: Overheating Open-Air Coil
    • F96: Overheating Compressor or IPM
    • F98: Over Current Protection
    • F99: DC Over Current Protection
    Daikin Ac Error Code
    Daikin Ac Error Code

    Daikin Ac Error Codes for Various Units
    Category Code Meaning
    System 00 Normal
    System UA Indoor-Outdoor Unit Combination Fault
    System U0 Refrigerant Shortage
    System U2 Drop Voltage or Main Circuit Overvoltage
    System U4 Failure of Transmission (Between Indoor Unit and Outdoor Unit)
    Indoor Unit A1 INDOOR PCB DEFECTIVENESS
    Indoor Unit A5 Freeze-Up Protector
    Indoor Unit A6 Fan Motor Fault
    Indoor Unit C4 Faulty Heat Exchanger Temperature Sensor
    Indoor Unit C9 Faulty Suction Air Temperature Sensor
    Outdoor Unit E1 Circuit Board Fault
    Outdoor Unit E5 OL Started
    Outdoor Unit E6 Faulty Compressor Start Up
    Outdoor Unit E7 DC Fan Motor Fault
    Outdoor Unit E8 Overcurrent Input
    Outdoor Unit F3 High Temperature Discharge Pipe Control
    Outdoor Unit F6 High Pressure Control (In Cooling)
    Outdoor Unit H0 Sensor Fault
    Outdoor Unit H6 Operation HALT DUE TO FAULTY POSITION DETECTION SENSOR
    Outdoor Unit H8 DC Current Sensor Fault
    Outdoor Unit H9 Faulty Suction Air Temperature Sensor
    Outdoor Unit J3 Faulty Discharge Pipe Temperature Sensor
    Outdoor Unit J6 Faulty Heat Exchanger Temperature Sensor
    Outdoor Unit L3 Electrical Parts Heat Fault
    Outdoor Unit L4 High Temperature at Inverter Circuit Heatsink
    Outdoor Unit L5 Output Overcurrent
    Outdoor Unit P4 Faulty Inverter Circuit Heatsink Temperature Sensor

    Frequently Asked Questions

    AC error codes are diagnostic messages displayed by your air conditioning system to indicate specific issues. They may occur due to problems like sensor failure, refrigerant leaks, or electrical malfunctions.

    Our expert technicians are trained to quickly identify and resolve issues based on the error codes displayed by your AC. We ensure accurate diagnosis and provide effective solutions to keep your system running efficiently.

    Yes, we provide troubleshooting and repair services for all major AC brands, including LG, Samsung, Daikin, Voltas, and many others. Our team is equipped with the tools and knowledge to handle various models and issues.

    The time to resolve an issue depends on the complexity of the error code. However, we strive to offer same-day service for common problems and ensure that your AC is back in working condition as quickly as possible.

    Our diagnostic charges are affordable and vary depending on the type of issue and AC model. Detailed estimates are provided after inspection, ensuring transparency and no hidden costs.

    Get in Touch

    For further information or to request a custom AMC package, contact us today.

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