My WaterFurnace Heat Pump is now having problems. It started two nights ago, the system went into FAULT mode. Troubleshooting I found that when the system went into the 2nd stage heat, the system would go into FAULT mode and basically shut down. I shut the system off at the thermostat and then turned off the circuit breakers for both the Heat Pump and Air Handler. I waited two minutes, turned the breakers back on. A minute later I turned the system back on at the thermostat. The system came back and was generating heat once again.

The next morning I found the system in FAULT mode again early in the morning. I reset the system as I did the previous day and it operated for about half an hour before going into FAULT mode again. Resetting the system does not work any more. The system now goes into FAULT mode immediately when Stage 1 powers up.

My system is now in Emergency Heat mode. I had an appointment scheduled this morning with my Geothermal installer. I am awaiting the arrival of the Tech for the repair.