Mitsubishi PUHY-P72 Air Conditioner User Manual


 
[ IX Troubleshooting ]
- 179 -
HWE09120 GB
1. Error Code
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
In the case of 4225
Refer to section -6- "Inverter (TJMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 251)
4220
4225
(TJMU-A)
Cause Check method and remedy
(1) External noise
(2) INV board failure Refer to IX [4] -6- (2) [1].(page 253)
(3) IPM failure (P96, P120, P144 models only) Replace the IPM.
(4) DCCT failure (P96, P120, P144 models only) Replace the DCCT.
Cause Check method and remedy
(1) External noise
(2) Fan board failure Refer to IX [4] -6- (2) [6].(page 255)