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Error code

Mitsubishi Electric PUHY code 4255

For your safety

This fault is rated high and involves an area that affects personal safety. No remote repair or do-it-yourself instructions are given; do not use the appliance or try to open or repair it.

Hazard area: mains voltage and refrigerant gas circuit

Do not use the appliance and call an authorised service. If there is a risk to life, move to a safe place and see the emergency numbers.

The emergency numbers here are for Turkey. If you are outside Turkey, call your local emergency number.

All emergency numbers and province details

No approved translation for this record yet; showing the original text.

Meaning

IPM error (Detail code 101): In the case of 4250 If an overcurrent is detected by the overcurrent detection circuit on the INV board. In the case of 4255 and 4256 If an error signal is detected from IPM on the fan board. | Overcurrent error due to short-circuited motor (Detail code 105): If a short is detected in the compressor or fan motor just before starting the inverter operation. | Codes Instantaneous overcurrent (Detail code 106): If the current sensor detects an overcurrent other than the specified value. * For details of the model names and specified values, refer to the following page(s). The note of [7-1 Error Code and Preliminary Error Code Lists] Using | Motor synchronization loss (Detail code 137): If fan motor locking is detected during operation.

Member details

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Possible causes

(1) Inverter output related (2) The setting for the outdoor unit model selection switch is incorrect (control boards SW5-3 to 5-8). (1) Fan motor abnormality (2) Fan board failure (1) Grounding fault compressor (2) Inverter output related (3) Open phase in the power-supply due to improper power-supply wiring (1) Grounding fault of fan motor (1) Short-circuited compressor winding (2) Inverter output wiring (1) Short-circuited fan motor winding (2) Fan inverter output wiring (1) Open phase of the fan board output (2) Air passage blockage (3) Strong wind such as a gust (4) Fan motor failure (5) Fan board failure (6) The setting for the outdoor unit model selection switch is incorrect (control boards SW5-3 to 5-8). (1) Fan motor locking (2) Open phase of the fan (3) Fan motor failure (4) Strong wind such as a (6) The setting for the outdoor tion switch is incorrect 3 to 5-8).

Solution

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.