Panasonic air conditioner error codes

Panasonic air conditioners are widespread, because they possess not only a good set of functions, but offer their users a range of automatically controlled systems. One of them is represented by the error codes` system. It can be seen below in form of a chart, where error codes decoding is given.

Panasonic CS-S9PKR air conditioner error codes

Panasonic CS-S9PKR is a cooling only inverter air conditioner. Its power equals 2.6 kW. The model boasts a high level of energy efficiency, a built-in anti-bacterial filter and dehumidifier. The AC has intuitive controls, so it is comparatively easy to set up. In addition to this, the company emphasizes that this model is characterized by very quiet operation.

Diagnosis displayAbnormality / Protection controlAbnormality JudgementProtection operationProblemCheck location
H00No memory of failureNormal operation
H11Indoor/outdoor abnormal communicationAfter operation for 1 minuteIndoor fan only operation can start by entering into force cooling operationI ndoor/outdoor communication not establish• Indoor/outdoor wire terminal
• Indoor/outdoor PCB
• Indoor/outdoor connection wire
H12Indoor unit capacity unmatched90s after power supplyTotal indoor capability more than maximum limit or less than minimum limit, or number of indoor unit less than two.• Indoor/outdoor connection wire
• Indoor/outdoor PCB
• Specification and combination table in catalogue
H14Indoor intake air temperature sensor abnormalityContinuous for 5sIndoor intake air temperature sensor open or short circuit• Indoor intake air temperature sensor lead wire and connector
H15Compressor temperature sensor abnormalityContinuous for 5sCompressor temperature sensor open or short circuit• Compressor temperature sensor lead wire and connector
H16Outdoor current transformer (CT) abnormalityCurrent transformer faulty or compressor faulty• Outdoor PCB faulty or compressor faulty
H19Indoor fan motor merchamsm lockContinuous happen for 7 timesIndoor fan motor lock or feedback abnormal• Fan motor lead wire and connector
• Fan motor lock or block
H23Indoor heat exchanger temperature sensor abnormalityContinuous for 5sIndoor heat exchanger temperature sensor open or short circuit• Indoor heat exchanger temperature sensor lead wire and connector
H27Outdoor air temperature sensor abnormalityContinuous for 5sOutdoor air temperature sensor open or short circuit• Outdoor air temperature sensor lead wire and connector
H28Outdoor heat exchanger temperature sensor 1 abnormalityContinuous for 5sOutdoor heat exchanger temperature sensor 1 open or short circuit• Outdoor heat exchanger temperature sensor 1 lead wire and connector
H30Outdoor discharge pipe temperature sensor abnormalityContinuous for 5sOutdoor discharge pipe temperature sensor open or short circuit• Outdoor discharge pipe temperature sensor lead wire and connector
H32Outdoor heat exchanger temperature sensor 2 abnormalityContinuous for 5sOutdoor heat exchanger temperature sensor 2 open or short circuit• Outdoor heat exchanger temperature sensor 2 lead wire and connector
H33Indoor / outdoor misconnection abnormality'Indoor and outdoor rated voltage different• Indoor and outdoor units check
H34Outdoor heat sink temperature sensor abnormalityContinuous for 2sOutdoor heat sink temperature sensor open or short circuit• Outdoor heat sink sensor
H36Outdoor gas pipe temperature sensor abnormalityContinuous for 5sHeating protection operation onlyOutdoor gas pipe temperature sensor open or short circuit• Outdoor gas pipe temperature sensor lead wire and connector
H37Outdoor liquid pipe temperature sensor abnormalityContinuous for 5sCooling protection operation onlyOutdoor liquid pipe temperature sensor open or short circuit• Outdoor liquid pipe temperature sensor lead wire and connector
H38Indoor/Outdoor mismatch (brand code)Brand code not match• Check indoor unit and outdoor unit.
H39Abnormal indoor operating unit or standby units3 times happen within 40 minutesWrong wiring and connecting pipe, expansion valve abnormality, indoor heat exchanger sensor open circuit• Check mdoor/outdoor connection wire and connection pipe
• Indoor heat exchanger sensor lead wire and connector
• Expansion valve and lead wire and connector
H41Abnormal wiring or piping connectionWrong wiring and connecting pipe, expansion valve abnormality• Check mdoor/outdoor connection wire and connection pipe
• Expansion valve and lead wire and connector.
H59ECO patrol sensor abnormalityContinuous for 70sECO patrol sensor open or short circuit• ECO patrol sensor
• ECO patrol and Indoor PCB
H64Outdoor high pressure sensor abnormalityContinuous for 1 minutesHigh pressure sensor open circuit during compressor stop• High pressure sensor
• Lead wire and connector
H97Outdoor fan motor mechanism lock2 times happen within 30 minutes'Outdoor fan motor lock or feedback abnormal• Outdoor fan motor lead wire and connector
• Fan motor lock or block
H98Indoor high pressure protection'Indoor high pressure protection (Heating)• Check indoor heat exchanger
• Air filter dirty
• Air circulation short circuit
H99Indoor operating unit freeze protection""Indoor freeze protection (Cooling)• Check indoor heat exchanger
• Air filter dirty
• Air circulation short circuit
F114-way valve switching abnormality4 times happen within 30 minutes4-way valve switching abnormal• 4-way valve
• Lead wire and connector.
F17Indoor standby units freezing abnormality3 times happen within 40 minutesWrong wiring and connecting pipe, expansion valve leakage, indoor heat exchanger sensor open circuit• Check indoor/outdoor connection wire and pipe
• Indoor heat exchanger sensor lead wire and connector
• Expansion valve lead wire and connector.
F90Power factor correction (PFC) circuit protection4 times happen within 10 minutesPower factor correction circuit abnormal• Outdoor PCB faulty
F91Refrigeration cycle abnormality2 times happen within 20 minutesRefrigeration cycle abnormal• Insufficient refrigerant or valve close
F93Compressor abnormal revolution4 times happen within 20 minutesCompressor abnormal revolution• Power transistor module faulty or compressor lock
F94Compressor discharge pressure overshoot protection4 times happen within 30 minutesCompressor discharge pressure overshoot• Check refrigeration system
F95Outdoor cooling high pie»»uie piuteUiun4 times happen williin 20 minutesCooling high pressure piuleUiun• Check refrigeration system
• Oulduui aii uiuiit
F96Power transistor module overheating protection4 times happen within 30 minutesPower transistor module overheat• PCB faulty
• Outdoor air circuit (fan motor)
F97Compressor overheating protection3 times happen within 30 minutesCompressor overheat• Insufficient refrigerant
F98Total running current protection3 times happen within 20 minutesTotal current protection• Check refrigeration system
• Power source or compressor lock
F99Outdoor direct current (DC) peak detectionContinuous happen for 7 timesPower transistor module current protection• Power transistor module faulty or compressor lock

Panasonic R410A air conditioner error codes

Panasonic R410A is a range of air conditioners using the R410A refrigerant. It is an older type of refrigerant. Although it has a zero ozone depletion capacity, it cannot be considered ecology-friendly due to its high global warming potential (2088). It therefore can’t compete with R-290 or R-600A refrigerants, whose global warming potential is only 3.

Alarm CodeAlarm Meaning
E01Remote Controller Reception Error
E02Remote Controller Transmission Error
E03Error in Indoor Unit Receiving Signal from Remote Controller (central)
E04Error in Indoor Unit Receiving Signal from the Outdoor Unit
E05Error in Indoor Unit Transmitting Signal to the Outdoor Unit
E06Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit
E07Outdoor Unit Sending Failure to Indoor Unit
E08Duplicate Indoor Unit Address Settings Error
E09More Than One Remote Controller Set to Main Error
E12Automatic Address Setting Start is Prohibited while Auto-address Setting in Progress.
E13Error in Indoor Unit Transmitting Signal to Remote Controller
E14Main Unit duplication in Simultaneous-operation Multi Control (detected outdoor unit)
E15Automatic Address Alarm (capacity too low)
E16Automatic Address Alarm (capacity too high)
E18Faulty Communication in Group Control Wiring
E20No Indoor Units Connected
F04Compressor Discharge Temperature Sensor (TD) Trouble
F06Inlet Temperature Sensor (C1) in Heat Exchanger Trouble
F07Intermediate Temperature Sensor (C2) in Heat Exchanger Trouble
F08Outdoor Air Temperature Sensor (TO) Trouble
F12Compressor Inlet Suction Temperature Sensor (TS) Trouble
F31Outdoor Unit Nonvolatile Memory (EEPROM) Trouble
H01Primary (input) Overcurrent Detected
H02PAM Trouble
H03Primary Current CT Sensor (current sensor) Failure
H05Sensor Failure. Compressor Discharge Temperature Sensor (TD) Disconnected
H31HIC Trouble
L04Outdoor Unit Address Duplication
L10Outdoor Unit Capacity not Set
L13Indoor Unit Type Setting Error
L184-way Valve Operation Failure
P03Compressor Discharge Temperature Trouble
P04High Pressure Trouble
P05AC Power Supply Trouble
P13Alarm Valve Open
P1402 Sensor Detect
P15Insufficient Gas Level Detected
P16Compressor Overcurrent Trouble
P22Outdoor Unit Fan Motor Trouble
P29Lack of INV Compressor Wiring. INV Compressor Actuation Failure (including locked) due to DCCT Failure

Panasonic S-36PU1E5A air conditioner error codes

Panasonic S-36PU1E5A range comprises air conditioning systems that may have several types of indoor and outdoor units. For instance, indoor units may be of the following types: wall-mounted, ceiling, 4-way cassette, ducted or low silhouette ducted. The range of outdoor units available includes single split 1-phase or 3-phase units.

Remote controller displayCause
Nothing is displayed.The remote controller is not connected correctly (power trouble). The indoor unit power was cut off after automatic address setting was completed.
E01The remote controller is not connected correctly (remote controller receiving trouble). The remote controller of an indoor unit where the indoor unit address is not set is inadvertently operated. (Communications with the outdoor unit are not possible.)
E02The remote controller is not connected correctly (trouble with sending of the signal from the remote controller to the indoor unit).
E09The indoor unit ceiling panel connector is not connected correctly.
E01Remote Controller Reception Error
E02Remote Controller Transmission Error
E03Error in Indoor Unit Receiving Signal from Remote Controller (central)
E04Error in Indoor Unit Receiving Signal from the Outdoor Unit
E05Error in Indoor Unit Transmitting Signal to the Outdoor Unit
E06Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit
E08Duplicate Indoor Unit Address Settings Error
E09More Than One Remote Controller Set to Main Error
E12Automatic Address Setting Start is Prohibited while Auto-address Setting in Progress.
E14Main Unit duplication in Simultaneous-operation Multi Control (detected outdoor unit)
E15Automatic Address Alarm (The total capacity of indoor units is too low.)
E16Automatic Address Alarm (The total capacity of indoor units is too high or the total number of indoor units is too many.)
E18Faulty Communication in Group Control Wiring
E20Connection Problem of Indoor/Outdoor Units.
F04Compressor Discharge Temperature Sensor (TD) Trouble
F06Inlet Temperature Sensor (C1) in Heat Exchanger Trouble
F07Intermediate Temperature Sensor (C2) in Heat Exchanger Trouble
F08Outdoor Air Temperature Sensor (TO) Trouble
F12Compressor Inlet Suction Temperature Sensor (TS) Trouble
F31Outdoor Unit Nonvolatile Memory (EEPROM) Trouble
H01Primary (input) Overcurrent Detected
H02PAM Trouble
H03Primary Current CT Sensor (current sensor) Failure
H31HIC Trouble
L04Outdoor Unit Address Duplication
L10Outdoor Unit Capacity not Set or Invalid
L13Indoor Unit Type Setting Error
L184-way Valve Operation Failure
P03Compressor Discharge Temperature Trouble
P04High Pressure Trouble
P05AC Power Supply Trouble
P13Alarm Valve Open
P1402 Sensor Detect
P15Insufficient Gas Level Detected
P16Compressor Overcurrent Trouble
P22Outdoor Unit Fan Motor Trouble
P29Lack of INV compressor wiring, INV compressor actuation failure (including locked), DCCT failure
P31Group Control Error

Panasonic U-26PE1U6 air conditioner error codes

Panasonic U-26PE1U6 range of air conditioners is comprised of several types of indoor and outdoor units. Each type has its own code (K2, U2, T2 etc.). In spite of all the differences models from the U-26PE1U6 lineup have, they use the same system of error codes. If something goes wrong with an air conditioner, check the code the appliance is displaying to fix it without someone’s help.

Remote controller alarm displayAlarmJudgment conditionClear conditionJudgment and correction
P03Abnormal discharge temperature • Discharge temp, detected at or above the specified value.Stops when temp, exceeds 232 *F.Recovery at restart1. Check refrigerant cycle (gas leak).
2. Electronic control valve trouble
3. Check tubing sensor (TD).
P04High pressure switch is activated. Compressor motor thermal protector is activated.Stops when pressure exceeds 600 psi. Stops when temp, exceeds 230 "F.Recovery at restart1. Check the high pressure switch connector is securely connected.
2. Check the ourdoor unit heat exchanger is not dogged (cooling operation).
3. Check the indoor unit air filter has not become clogged (heating operation).
P05Missing phase detected. (CT disconnected or AC power trouble)Current value sent from MDC on outdoor unit control PCB is low.
No AC power input for 3 minutes or longer: pre-trip - 5

Recovery at restart1. Check R/S/T power.
2. Check inverter control PCB.
3. Check outdoor unit control PCB.
P15Insufficient gas level detected.The following conditions continue for 1 minute.
• Discharge temp, is 203 *F or higher.
• Electronic control valve is at step 480.
• Current value from MDC is 2.0 A or less.
Recovery at restartCheck refrigerant cycle (gas leak).
P194-way valve locked • Judgment occurs after compressor has been ON for 5 minutes.Indoor heat exchanger temp, drops although compressors are ON in heating mode: [min(E1. E2)]£50'F.
Indoor heat exchanger temp, rises although compressors are ON in cooling mode:
E2 i 104 'F.
Recovery at restart1. Check 4-way valve.
2. Check 4-way valve wiring.
3. Check outdoor unit control PCB.
P20High-pressure protection troubleIf MAX (C1.C2) is 142°F or higher, the compressor stops one. The compressor restarts three time, and if the temperature does not decrease to less than 142°F. the alert “P20" is displayed.Recovery at restart1. Refrigerant cycle overload operation
2. Outdoor coil temperature sensor C1 or C2
P22Outdoor unit fan motor trouble • Inverter protection circuit was activated, or lock was detected, at outdoor unit fan motor.Inverter stops after alarm is detected.Recovery at restart1. Position detection trouble
2. Overcurrent protection circuit at outdoor unit fan motor was activated.
• Check outdoor unit control PCB.
• Refer to outdoor unit fan judgment methods.
P26Inverter protection circuit was activated, or G-Tr short-circuit (short time: 0.8 s or less) in inverter controlInverter stops after alarm is detected. Alarm is output when inverter stops (pre-tnp) consecutively 4 times.Recovery at restart1. Stops immediately when restarted.
• Layer short in the compressor
2. Check inverter control PCB.
• Wiring trouble
Remote controller alarm displayAlarm contentsJudgment conditionClear conditionJudgment and correction
P29Current detection circuit trouble • AC current value is high even when compressor is stopped.Inverter stops after alarm is detected. Alarm is output when inverter stops (pre-trip) consecutively 4 times.Recovery at restart1. Stops immediately when restarted.
• Layer short in the compressor
2. Check inverter control PCB.
• Wiring trouble
Compressor motor output trouble. Inverter compressor trouble. MDC troubleInverter stops after alarm is detected.Recovery at restart1. Refrigerant cycle trouble, overload operation
2. Loose screws and contact failure between HIC control PCB and radiating plate
3. Cooling failure of radiating plate
4. Check outdoor unit PCB wiring.
Compressor does not run. (Overcurrent protection circuit activates after a certain period of time following compressor start.)Inverter stops after alarm is detected.Recovery at restart1. Compressor trouble (locked, etc.)
• Replace the compressor.
2. Compressor wiring trouble (missing phase)
Compressor breakdown
• Starts to operate but operating frequency drops and compressor stops.
Inverter stops after alarm is detected.Recovery at restart1. Check power voltage: AC 203 V ± 20 V or 230 V ± 23 V.
2. Refrigerant cycle overload operation
3. Check AC current detection circuit.
Inverter control PCB position detection circuit troubleInverter stops after alarm is detected.Recovery at restartPosition detection circuit is activated even when the compressor 3P connector is disconnected and the compressor operated.
• Replace the inverter control PCB.
F04Disconnection, open circuit, or short circuit in discharge temp, sensor (TD)26. 36 MODEL:
Sensor detection trouble (194°F or higher when 15 minutes have elapsed after compressor stopped). (Open circuit)
42 MODEL:
Sensor defection trouble (194°F or higher when 60 minutes have elapsed after compressor stopped). (Open circuit)
Automatic recovery1. Check discharge temp, sensor (TD).
2. Check outdoor unit control PCB.
F06Disconnection, open circuit, or short circuit in outdoor heat exchanger temp, sensor (C1)Open circuit or short circuitAutomatic recovery1. Check outdoor heat exchanger temp, sensor (C1).
2. Check outdoor unit control PCB.
F07Disconnection, open circuit, or short circuit in outdoor heat exchanger temp, sensor (C2)Open circuit or short circuitAutomatic recovery1. Check outdoor heat exchanger temp, sensor (C2).
2. Check outdoor unit control PCB.
F08Disconnection, open circuit, or short circuit in outdoor air temp, sensor (TO)Open circuit or short circuitAutomatic recovery1. Check outdoor air temp, sensor (TO).
2. Check outdoor unit control PCB.
F12Disconnection, open circuit, or short circuit in intake temp, sensor (TS)Open circuit or short circuitAutomatic recovery1. Check intake temp, sensor (TS).
2. Check outdoor unit control PCB.
Remote controller alarm displayAlarm contentsJudgment conditionClear conditionJudgment and correction
F31EEPROM troubleReading/writing failureRecovery at power reset1. Check EEPROM (IC007).
2. Check outdoor unit control PCB.
L02Mismatch of indoor and outdoor unit types (Espacio. Multi)Indoor unit judges that type does not match outdoor unit type.Recovery at power reset1. Check indoor unit EEPROM.
2. Check indoor unit control PCB.
L04Settings failureDuplicated outdoor unit address (system address)Automatic recovery1. Check outdoor unit system address.
2. Check inter-unit control wiring.
L07Settings failureGroup control wiring is connected to an independent-control indoorRecovery at power reset1. Check inter-unit control wiring.
2. Check indoor unit EEPROM.
L10Settings failureOutdoor unit capacity not set.Recovery at power resetCheck outdoor unit EEPROM.
L13Indoor-outdoor unit typesOutdoor unit judges that type does not match indoor unit type.Recovery at power reset1. Check indoor unit EEPROM.
2. Check outdoor unit control PCB.
E06Outdoor unit detected abnormal signal from indoor unit.Senai signal receiving failure (including failure to verify No. of units)Automatic recovery1. Check inter-unit control wiring.
2. Check outdoor unit
E07Outdoor unit sending failure to indoor unitSerial signal sending failureAutomatic recovery1. Check inter-unit control wiring.
2. Check outdoor unit control PCB.
E14Settings failureDuplicated master unit in simultaneous-operation multi control. (Detected by outdoor unit)Recovery at power reset1. Check inter-unit control wiring.
2. Check indoor unit combination.
E15Automatic address setting failureIndoor unit capacity too low.Recovery at power reset1. Check inter-unit control wiring.
2. Check outdoor unit control PCB.
E16Automatic address setting failureIndoor unit capacity too high.Recovery at power reset1. Check inter-unit control wiring.
2. Check outdoor unit control PCB.
E20Automatic address setting failureOutdoor unit cannot receive any serial signals from indoor units.Recovery at power reset1. Check inter-unit control wiring.
2. Check outdoor unit control PCB.
E31Communications trouble within unitNo communication possible with MDC for 3 minutes or longer.Automatic recoveryCheck outdoor unit control PCB.
H01Over currentInverter stops after alarm is detected.Recovery at restart1. Refrigerant cycle trouble, overload operation
2. Loose screws between HIC control PCB and radiating plate
3. Cooling failure of radiating plate
4. Check outdoor unit PCB wiring.

Panasonic WH-MDC05F3E5 air conditioner error codes

Panasonic WH-MDC05F3E5 air conditioner is a mono bloc model. More specifically, it is a mono bloc air-to-water heatpump system. In addition to compact design, it boasts such features as energy efficiency (due to inverter technology and a special pump), environment-friendliness (due to non-ozone depletion substances refrigerant), and an easy-to-use control panel.

Diagnosis displayAbnormality/Protection controlAbnormality judgementPrimary location to verify
H00No abnormality detected
H12Indoor/Outdoor capacity unmatched90s after power supply• Indoor/outdoor connection wire
• Indoor/outdoor PCB
• Specification and combination table in cataloque
H15Outdoor compressor temperature sensor abnormalityContinue for 5 sec.• Compressor temperature sensor (defective or disconnected)
H20Water pump abnormalityContinue for 10 sec.• Indoor PCB
• Water pump (malfunction)
H23Indoor refrigerant liquid temperature sensor abnormalityContinue for 5 sec.• Refrigerant liquid temperature sensor (defective or disconnected)
H27Service valve errorContinue for 5 minutes• High pressure sensor (defective or disconnected)
H42Compressor low pressure abnormality• Outdoor pipe temperature sensor
• Clogged expansion valve or strainer
• Insufficient refrigerant
• Outdoor PCB
• Compressor
H62Water flow switch abnormalityContinue for 1 min.• Water flow switch
H64Refrigerant high pressure abnormalityContinue for 5 sec.• Outdoor high pressure sensor (defective or disconnected)
H65Deice circulation errorContinue for 10 sec.• Water flow switch sensor (defective or disconnected)
• Water pump malfunction
• Buffer tank (is used)
H70Back-up heater OLP abnormalityContinue for 60 sec.• Back-up heater OLP (Disconnection or activated)
H72Tank sensor abnormalContinue for 5 sec.• Tank sensor
H76Indoor - control panel communication abnormality• Indoor - control panel (defective or disconnected)
H90Indoor/outdoor abnormal communication> 1 min after starting operation• Internal/external cable connections
• Indoor/Outdoor PCB
H91Tank heater OLP abnormalityContinue for 60 sec.• Tank heater OLP (Disconnection or activated)
H95Indoor/Outdoor wronq connection• Indoor/Outdoor supply voltaqe
H98Outdoor high pressure overload protection• Outdoor high pressure sensor
• Water pump or water leakage
• Clogged expansion valve or strainer
• Excess refrigerant
• Outdoor PCB
H99Indoor heat exchanger freeze prevention• Indoor heat exchanger
• Refriqerant shortaqe
F12Pressure switch activate4 times occurrence within 20 minutes• Pressure switch
F14Outdoor compressor abnormal revolution4 times occurrence within 20 minutes• Outdoor compressor
F15Outdoor fan motor lock abnormality2 times occurrence within 30 minutes• Outdoor PCB
• Outdoor fan motor
F16Total running current protection3 times occurrence within 20 minutes• Excess refrigerant
• Outdoor PCB
F20Outdoor compressor overheating protection4 times occurrence within 30 minutes• Compressor tank temperature sensor
• Clogged expansion valve or strainer
• Insufficient refrigerant
• Outdoor PCB
• Compressor
F22I PM (power transistor) overheating protection3 times occurrence within 30 minutes• Improper heat exchange
• I PM (Power transistor)
F23Outdoor Direct Current (DC) peak detection7 times occurrence continuously• Outdoor PCB
• Compressor
F24Refrigeration cycle abnormality2 times occurrence within 20 minutes• Insufficient refrigerant
• Outdoor PCB
• Compressor low compression
F25Coding/Heating cycle changeover abnormality4 times occurrence within 30 minutes• 4-way valve
• V-coil
F27Pressure switch abnormalityContinue for 1 min.• Pressure switch
F30Water outlet sensor 2 abnormalityContinue for 5 sec.• Water outlet sensor 2 (defective or disconnected)
Diagnosis displayAbnormality/Protection controlAbnormality judgementPrimary location to verify
F36Outdoor air temperature sensor abnormalityContinue for 5 sec.• Outdoor air temperature sensor (defective or disconnected)
F37Indoor water inlet temperature sensor abnormalityContinue for 5 sec.• Water inlet temperature sensor (defective or disconnected)
F40Outdoor discharge pipe temperature sensor abnormalityContinue for 5 sec.• Outdoor discharge pipe temperature sensor (defective or disconnected)
F41PFC control4 times occurrence within 10 minutes• Voltage at PFC
F42Outdoor heat exchanger temperature sensor abnormalityContinue for 5 sec.• Outdoor heat exchanger temperature sensor (defective or disconnected)
F43Outdoor defrost sensor abnormalityContinue for 5 sec.• Outdoor defrost sensor (defective or disconnected)
F45Indoor water outlet temperature sensor abnormalityContinue for 5 sec.• Water outlet temperature sensor (defective or disconnected)
F46Outdoor Cunent Transformer open circuit• Insufficient refrigerant
• Outdoor PCB
• Compressor low
F48Outdoor EVA outlet temperature sensor abnormalityContinue for 5 sec.• Outdoor EVA outlet temperature sensor (defective or disconnected)
F49Outdoor bypass outlet temperature sensor abnormalityContinue for 5 sec.• Outdoor bypass outlet temperature sensor (defective or disconnected)
F95Cooling high pressure overload protection• Outdoor high pressure sensor
• Water pump or water leakage
• Clogged expansion valve or strainer
• Excess refrigerant
• Outdoor PCB

Error codes and troubleshooting