Mitsubishi Electric PURY-P72 Service Handbook page 212

[ IX Troubleshooting ]
1. Error Code
4220
(THMU-A)
4225
VDC error (Detail code 110)
2. Error definition and error detection method
Bus voltage abnormality If Vdc
3. Cause, check method and remedy
Same as detail code No.108 and 109 of 4220 error
Refer to section -7- "Inverter (THMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 293)
HWE0803A
(P96 and P120 models)
400V or Vdc 160V is detected. (H/W detection)
- 203 - GB