Maintenance; Error Code - Gree GDN12AJ-K4EBC1A Service Manual

8.Maintenance

8.1 Error Code

Malfunction
No.
Name
Malfunction of
1 ambient temp.
sensor
Malfunction
2 of tube temp.
sensor
12
Nixie tube display
F1
The compressor, fan
and water pump stop;
buttons are invalid
F2
Unit status
1. The wiring terminal between ambient temperature
sensor and main board is loosened or poorly
contacted;
2. There's short circuit due to trip-over of the parts on
controller;
3. Ambient temperature sensor is damaged (Please
check it by referring to the resistance table for
temperature sensor);
4. Main board is broken.
1. The wiring terminal between evaporator temperature
sensor and main board is loosened or poorly
contacted;
2. There's short circuit due to the trip-over of the parts
on controller;
3. Evaporator temperature sensor is damaged
(Please check it by referring to the resistance table for
temperature sensor);
4. Main board is broken.
Service Manual
Possible Causes
Maintenance