Panasonic R410A Service Manual

Also see for R410A: Installation instructions Service manual Installation instructions Installation instructions

Contents

Panasonic R410A Service Manual Manual pdf 115 page image

5-255-1. Contents of Remote Controller Switch Alarm DisplayContents of Alarm Display on Remote Controller (only Outdoor Unit)WiredremotecontrollerdisplayWireless remotecontroller lampdisplay Cause CorrectionOutdoor unit failed to receive serialcommunication signals from indoor unit Check inter-unit control wiringCheck outdoor HIC PCBFaulty cooling of heat sinkRefrigerant cycle abnormal overload operationCheck discharge temperature sensorCheck inter-unit control wiringCheck indoor and outdoor unit control PCBCheck indoor unit combinationCheck inter-unit control wiringCheck inter-unit control wiringCheck inter-unit control wiringCheck indoor and outdoor unit control PCBCheck inter-unit control wiringCheck indoor and outdoor unit control PCBCheck inter-unit control wiringCheck indoor and outdoor unit control PCBCheck inter-unit control wiringCheck indoor and outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit control PCB wiringCheck outdoor unit control PCB (HIC/CR)Check outdoor unit system addressCheck indoor and outdoor units PCBCheck AC power supplyCheck AC power supplyCheck outdoor unit control PCBCheck outdoor unit control PCBCheck outdoor unit EEPROMCheck outdoor unit EEPROMCheck indoor unit EEPROMCheck indoor and outdoor unit control PCBOutdoor unit sending failure to indoor unitAutomatic address alarmcapacity too lowAutomatic address alarmcapacity too highNo indoor units connectedAlternatelyAlternatelySimultaneouslySimultaneouslyAutomatic address setting start is prohibitedwhile auto-address setting in progress.Main unit duplication in simultaneous-operationmulti control (detected outdoor unit)Compressor discharge temperaturesensor (TD) troubleSensor failure, Compressor dischargetemperature sensor (TD) disconnected Check compressor discharge temperaturesensor (TD)Compressor discharge temperature troubleHigh pressure troubleCompressor inlet suction temperaturesensor (TS) troubleCheck compressor suction temperature sensor (TS)Compressor lockCheck outdoor control PCBCheck compressor locked upValve blockageCheck 4-way valve wiringCheck outdoor unit control PCBCheck wiring between outdoor control PCBand outdoor HIC PCB (CN-RELAY)Check refrigerant cycle (gas leak)Trouble with electronic expansion valveCheck discharge temperature sensorCheck refrigerant cycleValve blockageHeat exchanger obstructionOutdoor air temperature sensor (TO) trouble Check outdoor unit air temperature sensor (TO)Inlet temperature sensor (C1) in heatexchanger troubleCheck outdoor unit heat exchangertemperature sensor (C1)Screws connecting HIC circuit betweenheat sink are loose.Check outdoor unit heat exchangertemperature sensor (C2)Outdoor unit nonvolatile memory(EEPROM) troublePrimary (input) overcurrent detectedPAM troubleHIC troubleOutdoor unit address duplicationOutdoor unit capacity not setIndoor unit type setting error4-way valve operation failurePrimary current CT sensor(current sensor) failureIntermediate temperature (C2) in heatexchanger troubleOperationPreparingTimerE06E07E12E14E15E16E20F04F06F07F08F12F31H01H02H03H05H31L04L10L13L18P03P04Check 4-way valve