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Error code

Mitsubishi Electric PEFY code 5104

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

Meaning

Intake air temperature sensor (TH1) fault (OA processing unit) Intake air temperature sensor (TH24) fault (All-fresh (100% outdoor air) type indoor unit): If a short or an open is detected during thermostat ON, the outdoor unit turns to anti-restart mode for 3 minutes. When the error is not restored after 3 minutes (if restored, the outdoor unit runs normally), the outdoor unit makes an error stop. During heating operation During cooling operation for 3 minutes after the compressor t

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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

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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