There is a fuse in your HVAC unit to heat pump. Check to see if it
hasn’t burnt out. Not knowing where mine was, I called my unit’s
installers and and they did a courtesy drop by to check the fuse and
drain pan. If that is not an option for you, chec...
I looked up the error code in Google Nest online and it was suggested to
check the drain pan, the filter and the fuse. Fuse was good, drain pan
was good, so we changed the filter. Now it works and no error message.
No sure if this was a coincidence o...
I'm having the same issue. My new heat pump and Nest Thermostat was
installed a year ago. A few days ago I got the same error message. When
I turn the heat pump breaker off for a while the error message goes away
and AC runs for about 10 mins then th...