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Error Codes [4250, 4255] Detail Code 105 - Mitsubishi Electric PURY-HP72 Service Handbook

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[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-26

Error Codes [4250, 4255] Detail Code 105

1. Error code definition
Overcurrent error due to short-circuited motor (Detail code 105)
2. Error definition and error detection method
When a short is detected on the load side just before starting the inverter operation.
3. Cause, Check method and remedy
In the case of 4250
Cause
(1) Short - circuited com-
pressor
(2) Output wiring
In the case of 4255
Cause
(1)
Short - circuited fan
motor
(2)
Output wiring
For inverter-related error codes, refer to the following page(s).
[8-10 Troubleshooting Inverter Problems (TKMU)](page 288)
[8-11 Troubleshooting Inverter Problems (YKMU)](page 298)
HWE13080
Check method and remedy
Refer to the following page(s).
(TKMU)
[8-10-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 290)
(YKMU)
[8-11-3 Checking the Compressor for Ground Fault and Coil Resistance Prob-
lems](page 300)
Check for a short circuit.
Check method and remedy
Refer to the following page(s).
(TKMU)
[8-10-6 Checking the Fan Motor for Ground Fault and Coil Resistance Problems](page
291)
(YKMU)
[8-11-6 Checking the Fan Motor for Ground Fault and Coil Resistance Problems](page
301)
Check for a short circuit.
- 208 -
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