Error Code [4260] - Mitsubishi Electric PUHY-HP200YNW-A Service Handbook

[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-21 Error Code [4255, 4256] Detail Code 137
1. Error code definition
Motor synchronization loss (Detail code 137)
2. Error definition and error detection method
Fan motor locking was detected during operation.
3. Cause, check method and remedy
(1) Fan motor locking
(2) Fan motor failure
(3) Fan board failure
For inverter-related error codes, refer to the following page(s). [8-9 Troubleshooting Inverter Problems]
7-6-22

Error Code [4260]

1. Error code definition
Heatsink overheat protection at startup
2. Error definition and error detection method
When heatsink temperature (THHS) remains at or above TOH for 10 minutes or longer after inverter startup
models
INV42Y
3. Cause, check method and remedy
Same as 4230 error
34
- chapter 7
Cause
TOH
100˚C
Check method and remedy
Check the fan blades for objects obstructing fan rotation.
Refer to the following page(s).
[8-9-6 Checking the Fan Motor for Ground Fault and Coil Re-
sistance Problems]
Refer to the following page(s).
[8-9-7 Checking the Fan Board Error Detection Circuit at No
Load]
[8-9-8 Checking the Fan Board for Damage at No Load]
[8-9-9 Checking the Fan Board for Damage with Load]
BS_07_L