What to do if my Sundez Heat Pump unit is out of operation?
If your Sundez Heat Pump unit isn't working, start by checking the power source. If the power source is ok, inspect the power wire connection to ensure it's secure. Also, check the fuse and replace it if it's burnt out. Finally, ensure the water level is sufficient to switch on the low water level switch; if not, add water.
Why is my Sundez Heat Pump water pump running but there's no water circulation?
If the water pump in your Sundez Heat Pump is running but there's no water circulation, there might be a lack of water in the system; try filling the water supply system. Another cause may be air trapped in the water system, so discharge any air. Also, ensure that all valves in the system are open. Finally, a blocked water filter can cause this issue, so clean the water filter.
What to do if my Sundez SDDC-050-B has low heating capacity?
If your Sundez Heat Pump has low heating capacity, it could be due to a lack of refrigerant. In this case, hunt for leaks and fix them, then discharge any remaining refrigerant and inject the correct amount. Poor heat preservation in the water system can also cause this, so improve the heat preservation. Another potential cause is low evaporator heat transferring, so wash the evaporator. Lastly, low water flow volume can be the issue, so clean the water filter.
What to do if my Sundez SDDC-050-B is making a high noise of compressor?
If your Sundez Heat Pump's compressor is making a lot of noise, it might be due to liquid refrigerant entering the compressor. Check if the thermostatic expansion valve is faulty. Another possibility is that an interior component of the compressor is faulty, requiring you to change the compressor.
Why my Sundez SDDC-050-B has heavy frosting and low heating capacity?
If your Sundez Heat Pump is experiencing heavy frosting and low heating capacity, the evaporator might be too dirty, so wash the evaporator. Another cause could be a defrost sensor fault, so change it for a new one. Also, the 4 way valve might not be changing direction, so check if the solenoid is energized. Finally, it could be due to an over long defrosting duration, so change the temperature for entering defrost and the duration.
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