Air Source Heat Pump Water Heater
40
Safety valve
check valve, which is a normal
phenomenon. However, if a large
amount of water is discharged through
the safety check valve or even pipe
vibration occurs and abnormal noise is
caused, contact C
&H
authorized
maintenance centers.
Table 18-2
Symptom
Fault Diagnosis
Freeze-proof is displayed on the wired
controller.
The unit can automatically enable
freeze-proof protection in winter, which
is a normal phenomenon.
The sprayer sprays hot water for a short
time.
If the sprayer sprays water too fast due
to the model, this symptom is a normal
phenomenon. You are advised to use a
sprayer with a speed of 6 to 7 L/min.
The wired controller alternately displays
L6 and the water temperature.
The ambient temperature is too low, it
is beyond the running range of the main
unit, or the temperature is set too high
and exceeds the maximum
temperature of the heat pump.
In the water heating process, the unit is
slightly frosted.
If the unit runs too long for hot water, it
may be frosted, which is a normal
phenomenon. To improve heating
effects, the unit will automatically
defrost.
When defrosting runs, the electric motor
of the fan in the unit stops.
The fan does not work during
defrosting, which is a normal
phenomenon.
If the unit is not used for a long time,
turbid fluid may come out from the
tap when the unit is started again (or
started for the first time).
This is a normal phenomenon. Wait a
moment, the turbid fluid will disappear.
