rheem heat pump system - message on thermostat - check heat pump
I have a rheem RHPLHM3621JC air handler(16 seer variable speed fan), a rheem RPRL036JEC Heat pump( 3 ton also variable speed fan) and a white rogers 1F99-1292 thermostat. The thermostat is saying check heat pump. If i remove thermostat and plug it back on to the base it will work again for a while. Then it will come back on and say check heat pump. Any ideas, thanks.