20
English
English
Malfunction Codes
• Unit’s Malfunction Codes.
No.
Malfunction
Name
Display
Code
Unit’s Condition
Possible Causes
Display
Window
1
Ambient
Temperature
Sensor
Malfunction
F1
Compressor and fan
motor stop.
This button is 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.
•
Display board is damaged.
2
Tube
Temperature
Sensor
Malfunction
F2
•
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.
•
Display board is damaged.
3
Humidity
Sensor
Malfunction
L1
•
Humidity sensor is short-circuited.
•
Humidity sensor is damaged.
•
Display board is damaged.
4
Freon-lacking
protection
F0
The compressor stops;
the fan motor keeps
on running.
•
Refrigerant is leaking.
•
System is blocked
5
High-
temperature
over load
protection
H3
•
Ambient operation condition is bad.
•
The evaporator and condenser are
blocked with filth.
•
The system is abnormal.
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