Maintenance; Error Code - Gree ETAC2-07HC230VA-A Service Manual

Service Manual

9. Maintenance

9.1 Error Code

No. Malfunction Name
Indoor ambient
temperature sensor
1
is open/short-
circuited
Indoor evaporator
temperature sensor
2
is open/short-
circuited
Outdoor ambient
temperature sensor
3
is open/short-
circuited
low temperature
4 prevention
protection
Installation and Maintenance
Error Code A/C Status
The unit will stop
F1 operation as it reaches the
temperature point.
The unit will stop
F2 operation as it reaches the
temperature point.
The unit will stop
F4 operation as it reaches the
temperature point.
A/C enters into pure
electric heating mode, and
FP
low temperature protection
is started up.
Possible Causes
1.The wiring terminal between indoor ambient
temperature sensor and controller is loosened or poorly
contacted;
,
2.There s short circuit due to trip-over of the parts on
controller;
3.Indoor 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 indoor evaporator
temperature sensor and controller is loosened or poorly
contacted;
,
2.There s short circuit due to the trip-over of the parts on
controller;
3.Indoor evaporator 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 outdoor ambient
temperature sensor and controller is loosened or poorly
contacted;
,
2.There s short circuit due to the trip-over of the parts on
controller;
3.Outdoor ambient temperature sensor is damaged
(Please check it by referring to the resistance table for
temperature sensor)
4.Main board is broken.
1.Indoor ambient temperature is lower than 40°F(5°C)
continuously.;
2.Indoor ambient temperature sensor is damaged;
3.Main board is broken.
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