Air Source Heat Pump Water Heater
39
18 Troubleshooting
Warning
Do not personally repair the air source water heater
.
Non-professional
maintenance may cause electric shock hazards or a fire. If maintenance is required,
please contact C
&H
authorized service center to dispatch professional personnel.
Before contact C
&H
authorized service center, check the following items, which
may save your time and expenses.
Table 18-1
Symptom
Fault Diagnosis
The unit does not run when it is started
immediately after shutdown.
Wait
To protect the unit, the microcomputer
controls it to run 5 minutes after it is
shut down and then immediately
started.
The bicker sound can be heard during
operating.
When the unit is running, the "wow" or
"hiss" sound can be heard
sometimes, which is the sound of
flowing refrigerants. It does not indicate
a fault.
The main unit discharges
condensate water.
This is a result of normal operating of
the unit and does not indicate a fault.
You can use the drainage pipe to guide
the water to a proper place, as shown
in Figure 5-3.
The safety check valve is
discharging water.
In the water heating process, when the
inner container of the water tank bears
overpressure, it may discharge a small
amount of water through the safety
