SPRSUN
Incorrect Mode or Reversing Valve Issue
Heater runs in cooling mode instead of heating, or pool gets colder when heater is on.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Control set to COOL or AUTO instead of HEAT, Stuck reversing valve, Faulty reversing valve coil, Wiring error to reversing valve
How to Fix / Troubleshooting
Safety first: Use the control panel for mode changes; turn off power before accessing internal components.
- Check mode setting: On the SPRSUN controller, ensure the operating mode is set to HEAT only, not COOL or AUTO.
- Observe piping temperatures: Carefully feel (or use an infrared thermometer) on inlet and outlet pipes; in heating mode, outlet should be warmer.
- Listen for valve shift: When switching between heat and cool (if supported), you should hear the reversing valve shift. If not, the coil or valve may be stuck.
- Technician repair: A professional should test the reversing valve coil voltage and replace the coil or valve assembly if defective.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Reversing Valve Coil
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements