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Error code

Mitsubishi Electric PFD code 5103

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

Meaning

Gas-side pipe temperature sensor (TH23) fault (Indoor unit): If a shortor open-circuit of the sensor is detected during Thermo-ON, the unit goes into the 20-second restart delay mode. If normal operation is not resumed in 20 seconds, the unit will come to an abnormal stop. During heating operation During cooling operation for 3 minutes after the compressor turns on. | Heat exchanger outlet temperature sensor (TH3) fault (Outdoor unit): If a shorted-circuited (high temperature intake) or an open-circuited thermistor (low temperature intake) is detected (first detection), the outdoor unit stops, goes into the 20-second restart delay mode, and automatically restarts if the thermistor temperature reading is within the normal range at the end of the restart delay mode. If a shortor open-circuited thermistor is detected again (second detection) after restart, the outdoor unit stops again, goes into the 20-second restart delay mode

Member details

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Possible causes

(1) Thermistor failure (2) Connector contact failure (3) Disconnected wire or partial disconnected thermistor wire (4) Unattached thermistor or contact failure (5) Indoor board (detection circuit) failure (2) Pinched lead wire (3) Torn wire coating (4) A pin on the male connector is missing or contact failure (5) Disconnected wire (6) Thermistor input circuit failure on the control 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.

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