Kaysun Aquantia KHPS-MO Series, Инструкция по установке и эксплуатации, Страница: 78 / 92

ERROR CODE
MALFUNCTION OR
PROTECTION
FAILURE CAUSE
AND CORRECTIVE ACTION
The condenser refrigerant
outlet temperature is too high in
heating mode for more than 10
minutes.
The outside ambient temperature is too high(higher than 30°C, the
unit still operate heat mode. close the heat mode when the ambient
temperature is higher than 30°C.
The main control board PCB B
EEprom failure
1. The EEprom parameter is error, rewrite the EEprom data.
2. EEprom chip part is broken, change a new EEprom chip part.
3. Main PCB is broken, change a new PCB.
H6 displayed 10 times in 2
hours
Refer to H6
PFC module fault Contact your local dealer
Low pressure protection
(Pe<0.6) occured 3 times in an
hour
Refer to P0
Low pressure protection
1. System is lack of refrigerant volume. Charge the refrigerant in
right volume.
2. When at heating mode or heat water mode, Heat exchanger
is dirty or something is block on the surface. Clean the heat
exchanger or remove the obstruction.
3. The water flow is low in cooling mode.
4. Electrical expansion valve locked or winding connector is
loosen. Tap-tap the valve body and plug in/ plug off the
connector for several times to make sure the valve is working
correctly. And install the winding in the right location.
High pressure protection
Heating mode, DHW mode:
1. The water flow is low; water temp is high, whether there is air in
the water system. Release the air.
2. Water pressure is lower than 0.1Mpa, charge the water to let
the pressure in the range of0.15~0.2Mpa.
3. Over charge the refrigerant volume. Recharge the refrigerant in
right volume.
4. Electrical expansion valve locked or winding connector is
loosen. Tap-tap the valve body and plug in/ plug off the
connector for several times to make sure the valve is working
correctly. And install the winding in the right location DHW
mode: Water tank heat exchanger is smaller than the required
1.7m
2
.(10-16kW unit)or 1.4m2(5-9kW unit) Cooling mode:
1.Heat exchanger cover is not removed. Remove it.
2. Heat exchanger is dirty or something is block on the surface.
Clean the heat exchanger or remove the obstruction.
Compressor overcurrent
protection.
1. The same reason to P1.
2. Power supply voltage of the unit is low, increase the power
voltage to the required range.
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