For installers and professionals
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2.4. Maintenance and winterizing
2.4.1. Maintenance
The maintenance should be carried out once per year by qualified professional technician.
Cut off power supply of the
heat pump before cleaning,
examination and repairing .
Do not touch the electronic
components until the LED
indication lights on PCB turn off.
Please clean the evaporator with household detergents or clean water, NEVER use
gasoline, thinners or any similar fuel.
Check bolts, cables and connections regularly.
2.4.2. Winterizing
In winter season when you don’t swim, please cut off power supply and drain water out of
the heat pump. When using the heat pump under 2
℃
, make sure there is always water
flow.
3. Trouble shooting for common faults
Failure
Reason
Solution
Heat pump doesn’t run
No power
Wait until the power recovers
Power switch is off
Switch on the power
Fuse burned
Check and change the fuse
The breaker is off
Check and turn on the breaker
Fan running but with
insufficient heating
evaporator blocked
Remove the obstacles
Air outlet blocked
Remove the obstacles
3 minutes start delay
Wait patiently
Display normal, but no
heating
Set temp. too low
Set proper heating temp.
3 minutes start delay
Wait patiently
If above solutions don’t work, please contact your installer with detailed information and your model
number. Don’t try to repair it yourself.
ATTENTION
！
Please don’t try to repair the heat pump by yourself to avoid any risk.
Important:
Unscrew the water union of inlet pipe
to let the water flow out.
When the water in machine freezes in
winter season, the titanium heat
exchanger may be damaged.
