Mitsubishi Electronics PUHY-P72 Air Conditioner User Manual


 
[ IX Troubleshooting ]
- 179 -
HWE08040 GB
1. Error Code
IPM error (Detail code 101)
2. Error definition and error detection method
In the case of 4250
P72, P96 models
Overcurrent is detected by the overcurrent detection resistor (RSH) on the INVboard.
P120 model
IPM error signal is detected.
In the case of 4255
IPM error signal is detected.
3. Cause, check method and remedy
In the case of 4250
P72 and P96 models
P120 model
In the case of 4255
Refer to section -6- "Inverter (THMU-A)" under part [4] Troubleshooting Principal Parts for error codes related to the
inverter.(page 244)
4250
4255
(THMU-A)
Cause Check method and remedy
(1) Inverter output related Refer to IX [4] -6- (2) [1] - [4].(page 246)
Cause Check method and remedy
(1) Inverter output related Refer to IX [4] -6- (2) [1] - [4].(page 246)
(2) Same as 4230 error Same as 4230 error
Cause Check method and remedy
(1) Fan motor abnormality Refer to IX [4] -6- (2) [5].(page 247)
(2) Fan board failure Refer to IX [4] -6- (2) [6].(page 247)