Carrier Greenspeed Infinity Heat Pump-Impressive
This is the second season for the Carrier and last year it's performance was impressive. The backup for the system is propane.
This winter there have been a few issues:1. The main computer board had to be replaced. Now the new one has been installed but the backup system(propane) seems to be operating more than the actual heat pump. The temp outside is around -11 degrees C. I have the inside temp set at 18 degrees in the day and 21 in the evening when home.
There are times when heat is called for the heat pump will come on and other times when the backup system comes on. I never know which unit is going to be operating. The one I expect to operate is the heat pump.
Last winter our propane system did not cut in once. So this is unusual.
If the temperature does not fall below -20C should I be able to shut off the gas and rely strictly on the heat pump.