15
Malfunction Codes
● Unit's Malfunction Codes
Display
Code
Display
Window
● 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
●
Ambient temperature sensor is
damaged(Please refer to Checking
Table for Temperature Sensor
Resistance).
● Display board is damaged.
● Temperature sensor on the
evaporator is loosen or is poorly
connected with the terminal of
● Some element of display board
may have been put upside down
● Temperature sensor on the evaporator
is damaged(Please refer
to Checking Table for Temperature
● Display board is damaged.
●
Temperature sensor on the
evaporator is loosen or is poorly
connected with the terminal of
●
Some element of display board
may have been put upside down
●
Discharge temperature sensor is
damaged (Please refer
to Checking Table for Temperature
● Display board is damaged.
● Humidity sensor is short-circuited.
● Humidity sensor is damaged.
● Display board is damaged.
2
3
4
Compressor
and fan
motor stop.
The buttons
are invalid.
F2
Tube
Temperature
Sensor
Malfunction
L1
Humidity
Sensor
Malfunction
Discharge
Temperature
Sensor
Malfunction
F5
No.
Malfunction
Name
Unit's
Condition
Possible Causes
F1
Ambient
Temperature
Sensor
Malfunction
1