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Error code

Mitsubishi Electric MXZ code F3

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

— 63L connector open Abnormal if 63L connector circuit is open for 3 minutes continuously after power supply 63L: Low-pressure switch

Member details

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

View details as a member

Possible causes

(1) No voltage is supplied to terminal block (TB1) of outdoor unit. a) Power supply breaker is turned off. b) Contact failure or disconnection of power supply terminal c) Open phase (L or N phase) (2) Electric power is not charged to power supply terminal of outdoor power circuit board. a) Contact failure of power supply terminal b) Open phase on the outdoor power circuit board Disconnection of connector SC-R or SC-S (3) Electric power is not supplied to outdoor controller circuit board. a) Disconnection of connector (CNDC) (4) Disconnection of reactor (DCL) (5) Disconnection of outdoor noise filter circuit board or parts failure in outdoor noise filter circuit board (6) Defective outdoor power circuit board (7) Defective outdoor controller circuit board (1) Disconnection or contact failure of 63L connector on outdoor controller circuit board (2) Disconnection or contact failure of 63L (3) 63L is operating due to refrigerant leakage or defective parts. (4) Defective outdoor controller circuit board

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.