Gree GRS-1.5/TD150ANbA-K - Page 37

Air Source Heat Pump Water Heater
33
Table 12-2
When the following situations occur, please contact with Gree authorized
maintenance center
Error phenomenon
Error analysis
The unit is shut down and E1 is
displayed on the controller
System high pressure protection
The unit is shut down and E4 is
displayed on the controller
Discharge protection
The unit is shut down and E6 is
displayed on the controller
Communication error
The unit is shut down and F3 is
displayed on the controller
Outdoor temperature sensor error
The unit is shut down and F4 is
displayed on the controller
Discharge temperature sensor error
The unit is shut down and F6 is
displayed on the controller
Outdoor heat exchanger tube sensor error
The unit is shut down and Fd is
displayed on the controller
Suction temperature sensor error
The unit is shut down and FE is
displayed on the controller
Upper temperature sensor error on water
tank
The unit is shut down and FL is
displayed on the controller
Lower temperature sensor error on water
tank
The unit is shut down and L6 is
displayed on the controller
Unit capacity is insufficient
The unit is shut down and
anti-freeze icon is displayed on the
controller
*The controller displays anti-freeze
icon and the unit keeps operating,
which is normal anti-freeze
operation, not error
4-way reversing valve is abnormal
Harsh voice
Disagreeable smell
Air switch or circuit breaker
tripping frequently
There is probably the potential security
hazard and it is high recommended to stop
and unplug the unit
After-sales service
If there is any quality or other problem, please also contact the GREE appointed
service center