6.1 Unit Maintenance
The unit is only open and repaired by assigned agency or maintenance agency. Any damages
caused by unauthorized dismantling will end the warranty.
1.Our household Air-Source Heat Pump Water Heater can work well in a range of -7℃~46℃.
2.Standard components have to been used according to instructions and not replaceable.
3.For better and reasonable usage，the recommended outlet-water temperature is 50℃ in
winters and 43℃ in summers.
4.Regularly cleaning dust on evaporator and filter by professional mechanics ensures efficient
operation.
5.While maintaining, make sure the safe use of electricity. The heater is turned on only after
the faults have been eliminated.
6.Check the power supply frequently to ensure that the power plug and socket are in good
and reliable contact, well grounded and no overheating;
6.2 FAQ(Frequently Asked Question)
6.2.1 Unit operates; the water temperature remains
1. Fan runs but compressor does not---Check the wires connect compressor.
2. Refrigerant leaks—Check the connecting lines and add refrigerant after repair.
3. Thick frosting on evaporators in winter—Check defrosting system, the outlet blockage and
leaking possibilities.
6.2.2 Safety valve leaks
1. Inlet and outlet leaks—tighten the screws on the inlet or outlet.
2. External drainpipe leaks—Check the water pressure of tap water, install a pressure-reduc-
ing valve if necessary.
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6.Maintenance and Faults Handling
Test series
Display model and
software version
number.
For ORA1L03 modular,
this datum is tested with
0.5 meter distance.
Display the panel
and PCB board
model and software
version number
Factory reservation
F33
F35
Exit setting
End
Infrared threshold of
human body
F34
0~4095
500
V.
2
V.2