Geothermal Heat Pump Troubleshooting

Geothermal heat pumps, as any other technology, can function badly from time to time which doesn’t mean they aren’t of nice quality. If you see any problems in its work, turn to the guide we give here and start the repairs as soon as possible. It’s going to be effective if you do everything correctly and according to the instructions. The guide is well-thought and works in the process of repair.

Symptom/ProblemWhat You Can Do
Unit not operating.Check status/fault lights and thermostat.
Unit not heating or cooling adequately.Check filter, status/fault lights, and thermostat.
Unit just "hums" and doesn’t heat or cool.Disconnect power. Call for service.
Electric bills too high.Is unit always in Emergency Heat?
Is thermostat set to Continuous Fan when using PSC blower?
One room is too cold/hot.Check for closed registers and disconnected duct.
Too much air flow.Check for closed registers in other areas.
Whistling noise coming from fan.Check filter.
Loop has been damaged.Turn off unit at breaker. Call for service.
Thermostat settings "mysteriously” change.Check set points for both heating and cooling.
Red LED on at thermostat.Check status/fault lights on unit. See thermostat instructions.
Red LED on or flashing at unit.Determine fault condition by noting which light is on.
Drain light is flashing.Check condensate pan and drain.