Error Code [4260] (Tkmu); Error Code [4260] (Ykmu) - Mitsubishi Electric PURY-HP72 Service Handbook

[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-27

Error Code [4260] (TKMU)

1. Error code definition
Heatsink overheat protection at startup
2. Error definition and error detection method
The heatsink temperature (THHS) remains at or above 90°C [194°F] for 10 minutes or more at inverter startup.
3. Cause, check method and remedy
Same as 4230 error
7-6-28

Error Code [4260] (YKMU)

1. Error code definition
Heatsink overheat protection at startup
2. Error definition and error detection method
The heatsink temperature (THHS) remains at or above 100°C [212°F] for 10 minutes or more at inverter startup.
3. Cause, check method and remedy
Same as 4230 error
HWE13080
- 209 -
GB