9.4 Error Code
Ambient Temperature
Sensor Malfunction
Compressorand fanmotor
stop. Buttons are invalid.
● Ambient temperature sensor is loosen or is poorly
connected with the terminal of display board.
● Some element of display board may have been put
upside down and cause short circuit.
● Ambient temperature sensor is damaged(Please refer to
Checking Table for Temperature Sensor Resistance).
● Display board is damaged.
TubeTemperature
Sensor Malfunction
Compressorand fanmotor
stop. Buttons are invalid.
● Temperature sensor on the evaporator is loosen or is
poorly connected with the terminal of display board.
● Some element of display board may have been put
upside down and cause short circuit.
● Temperature sensor on the evaporator is damaged
(Please refer to Checking Table for Temperature Sensor
Resistance).
● Display board is damaged.
Humidity Sensor
Malfunction
● Humidity sensor is short-circuited.
● Humidity sensor is damaged.
● Display board is damaged.
Insufficient Refrigerant
protection
● Refrigerant is leaking.
● System is blocked.
High-temperature overoad
protection
● Ambient operation condition is bad.
● The evaporator and condenser are blocked with filth.
● The system is abnormal.