Error code

Mitsubishi Electric klima 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 | PFC error (Overvoltage/ Detailed codes Undervoltage/Overcurrent) • PFC detected any of the followings a) Increase of DC bus voltage to 420V.

Member details

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Possible causes

Overvoltage error Abnormal increase in power source 1 • Increase in DC bus voltage to voltage SHW80, 112VHA: 400V Disconnection of compressor wiring 2 SHW112, 140YHA: 760V Defective outdoor power circuit 3 board Compressor has a ground fault. 4 Undervoltage error Decrease in power source voltage, 1 • Instantaneous decrease in DC instantaneous stop. bus voltage to Disconnection or loose connection 2 SHW80, 112VHA: 200V of CN52C on the outdoor power SHW112, 140YHA: 350V circuit board/controller circuit board (SHW·VHA) 3 Defective converter drive circuit in outdoor power circuit board (SHW·VHA) 4 Defective 52C drive circuit in outdoor power circuit board 5 Defective outdoor converter circuit board (SHW·YHA) Disconnection or loose connection 6 of rush current protect resistor RS (SHW·YHA) 7 Defective rush current protect resistor RS (SHW·YHA) Disconnection or loose connection 8 of main smoothing capacitor CB (SHW·VHA) 9 Disconnection or loose connection of CN2 on the outdoor power circuit board /controller circuit board (SHW·VHA) 0 Power circuit failure on DC supply for 18V DC output on outdoor controller circuit board (SHW·VHA) Input current sensor error/ L1-phase open (SHW·YHA) 1 L1-phase open error • Decrease in input current Disconnection or loose connection 2 through outdoor unit to 0.1A between TB1 and ou

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.