Panasonic WH-MDC12G6E5 Operating Instructions Manual

Also see for WH-MDC12G6E5: Service manual

14The operation LED blinks and error code appears onthe display.• Disconnect the power supply, and reportthe error code to an authorised dealer.• The timer operation will be cancelledwhen an error code is displayed.DiagnosticdisplayAbnormality or Protectioncontrol worksH12 Capacity mismatchH15 Abnormal compressor temperaturesensorH20 Abnormal water pumpH23 Abnormal refrigerant 1 sensorH27 Abnormal service valveH42 Compressor low pressure protectionH62 Abnormal water flowH64 Abnormal high pressure sensorH65 Abnormal deice water circulationH70 Abnormal back-up heater overloadprotectorH72 Abnormal tank temperature sensorH76 Remote control communication errorH90 Abnormal indoor / outdoorcommunicationH91 Abnormal tank heater overload protectorH95 Abnormal voltage connectionH98 Outdoor high pressure protectionH99 Indoor heat exchanger freeze preventionDiagnosticdisplayAbnormality or Protectioncontrol worksF12 Pressure switch activatedF14 Poor compressor rotationF15 Abnormal outdoor fan motor lockF16 Comprehensive current protectionF20 Compressor temperature overloadprotectionF22 Transistor module temperature overloadprotectionF23 DC peak abnormal of operationF24 Abnormal Refrigerant cycleF25 Abnormal in a *1 cooling / heating chargeF27 Abnormal pressure switchF30 Abnormal water outlet sensor 2F36 Abnormal outdoor air temperaturesensorF37 Abnormal water inlet sensorF40 Abnormal outdoor discharge sensorF41 Abnormal power factor correctionF42 Abnormal outdoor heat exchangersensorF43 Abnormal outdoor defrost sensorF45 Abnormal water outlet sensorF46 Abnormalities in outdoor currenttransformer disconnectionF48 Abnormal evaporator outlet temperaturesensorF49 Abnormal bypass outlet temperaturesensorF95 Abnormal *1 cooling high pressureTroubleshooting*1 The system is locked to operate without COOL mode. It can be unlocked only by authorised installers or our authorised service partners.*2 Only displayed when COOL mode is unlocked (Means when COOL mode is available).