Specifications

Troubleshooting SiBE04-624_B
132 Service Diagnosis
2.40 Humidifying Thermistor Abnormality / Humidifying
Heater Temperature Abnormality
Error Code
PH
Method of Error
Detection
An error is identified when the temperature detected by the humidification thermistor is
abnormal.
Error Decision
Conditions

When the power is supplied and the thermistor input is 4.92 V or more, or 0.06 V or less.

The humidifying fan outlet temperature is more than 90°C.
Supposed
Causes
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Short circuit and wire breakage of humidifying thermistor

Disconnection of connector
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Heater has a high power

Thermistor temperature detection error

Defective rotor motor

Defective hygroscopic fan motor
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Defective heater control part
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Defective humidifying fan