Error code

Mitsubishi Electric PUY code 2503

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Meaning

Drain sensor abnormality: When short circuit or open circuit is detected during operation (cannot be detected during OFF). Short circuit: detected 90˚C or more Open circuit: detected –20˚C or less

Member details

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Possible causes

(1) Thermistor failure (2) Connector contact failure (Insert failure) (3) Disconnected wire or partial disconnected wire for thermistor (4) Indoor board (detection circuit) failure

Solution

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