Error code

Mitsubishi Electric PUZ code 4220

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

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

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

Meaning

01 02 04 08 | Detailed Undervoltage/Overcurrent) codes PFC detected any of the following: a) Increase of DC bus voltage to 430 V. c) Increase in input current 10 to 50 A peak.

Member details

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Possible causes

FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS". Overvoltage error Abnormal increase in power source • Increase in DC bus voltage to voltage ZM60-140V: 430 V Disconnection of compressor wiring ZM100-250Y: 760 V Defective outdoor power circuit board Compressor has a ground fault. Undervoltage error Decrease in power source voltage, • Instantaneous decrease in DC instantaneous stop. bus voltage to Disconnection or loose connection ZM60–140V: 200 V of CN52C on the outdoor power ZM100-250Y: 400 V circuit board/controller circuit board (ZM100–140V) Defective converter drive circuit in outdoor power circuit board (ZM60–140V) Defective 52C drive circuit in outdoor power circuit board Defective outdoor converter circuit board (ZM100–140Y) Disconnection or loose connection of rush current protect resistor RS (ZM100–250Y) Defective rush current protect resistor RS (ZM100–250Y) Disconnection or loose connection of CN2 on the outdoor power circuit board /controller circuit board (ZM60–140V) Power circuit failure on DC supply for 18 VDC output on outdoor controller circuit board (ZM60–140V) Input current sensor error/ L1-phase open (ZM100–250Y) L1-phase open error • Decrease in input current Disconnection or loose connection through outdoor unit to 0.1A between TB1 and outdoor noise filter only if operation frequency is circuit board (ZM100–250Y) more than or equal to 40Hz Disconnection or loose c

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.