Mitsubishi Electric PURY-RP200 Service Handbook page 180

[ IX Troubleshooting ]
1. Error Code
4220
4225
Logic error (Detail code 111)
2. Error definition and error detection method
H/W error
If only the H/W error logic circuit operates, and no identifiable error is detected.
3. Cause, Check method and remedy
In the case of 4220
(1) External noise
(2) INV board failure
In the case of 4225
(1) External noise
(2) Fan board failure
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 250)
HWE10020
Cause
Cause
Check method and remedy
Refer to IX [4] -7- (2) [1].(page 252)
Check method and remedy
Refer to IX [4] -7- (2) [6].(page 254)
- 171 -
GB