Heat Pump Thermostat question
I have a heat pump w/ electric back up.
I have thermo stat set at 68, unit runs, thermo stat says 68, keeps running.
This happens only when it is below around 32 degrees.
seems like at night when the temp is in the 20's the heat pump runs all night with out turning off.
Could the stat be not calibrated, or be bad, letting it run after it has met its desired temp?
I'm new to heat pumps , as my last home had a gas furnace and ran until desired temp was met then turned off