Malfunction Codes - Gree GDN20AZ-A3EBA2A Owner's Manual

Malfunction Codes

● Unit's Malfunction Codes
Malfunction
No.
Name
Ambient
Temperature
1
Sensor
Malfunction
Tube
Temperature
2
Sensor
Malfunction
Discharge
Temperature
3
Sensor
Malfunction
Humidity
4 Sensor
Malfunction
Display
Code Unit's
Condition
Display
Window
F1
F2
Compressor
and fan
motor stop.
The buttons
are invalid.
F5
L1
15
Possible Causes
● 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.
● 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.
● 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.
● Discharge temperature sensor is
damaged (Please refer
to Checking Table for Temperature
Sensor Resistance).
● Display board is damaged.
● Humidity sensor is short-circuited.
● Humidity sensor is damaged.
● Display board is damaged.