Troubleshooting - Mitsubishi Electric PQHY-P72ZLMU-A Service Handbook

IX Troubleshooting
[1] Error Code Lists ............................................................................................................. 239
[2] Responding to Error Display on the Remote Controller................................................. 243
[3] Investigation of Transmission Wave Shape/Noise......................................................... 317
[4] Troubleshooting Principal Parts ..................................................................................... 320
[5] Refrigerant Leak ............................................................................................................353
[6] Compressor Replacement Instructions.......................................................................... 357
[7] Servicing the BC controller ............................................................................................ 366
[8] Troubleshooting Using the Heat source Unit LED Error Display ................................... 369
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HWE15150 GB