Air Source Heat Pump Water Heater
40
Table 18-3
Please contact the
C
&H
appointed service center in
case of any of following conditions.
The unit is shut down and E1 is
High pressure protection
The unit is shut down and E4 is
displayed on thecontroller.
Discharge protection
The unit is shut down and E5 is
displayed on the controller.
Compressor overload 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 coil temperature
sensor e rror
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 Water temperature sensor error
The unit is shut down and FL is
displayed on the controller.
Middle Water temperature sensor error
The unit is shut down and L6 is
displayed on the controller.
Insufficient unit capability
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 the air source water heater you purchase from
C&H
encounters quality problems
or other problems, contact your local maintenance centers authorized by
C&H
.
Symptom
Errors