Error code

Mitsubishi Electric PUHZ code UH

For your safety

This fault is rated critical. 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

If there is a risk to life, first move to a safe place, then call 112. Do not follow remote repair instructions.

Call 112

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

Meaning

Current sensor error or input current error ·Abnormal if current sensor detects –1.0 A to 1.0 A during compressor operation. (This error is ignored during test run.) Compressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds.

Member details

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Possible causes

(1) Disconnection of compressor wiring (2) Defective circuit of current sensor on outdoor power circuit board (3) Decrease of power supply voltage (4) Leakage or shortage of refrigerant (1) Decrease of power supply voltage (2) Looseness, disconnection or converse of compressor wiring connection (3) Defective fan of outdoor units (4) Short cycle of indoor/outdoor units (5) Defective input circuit of outdoor controller board (6) Defective compressor (7) Decreased water flow (8) Clogged filter of water pipe (9) Clogged plate heat exchanger (0) Locked water pump (1) Malfunction of water pump

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.