Day three with the new thermostats (I have two systems in my house so need two thermostats).
Day 1 resulted in 2 successful heating cycles but ended with a blown 3amp fuse (at the furnace control panel) on both furnaces. I knew it was the fuse because the error code the furnace was throwing was error code 24. After asking google, realised it was the fuse. Unfortunately this was Sunday night and stores were all closed so we slept in an unheated house (toddler and infant in the house so I’ve earned my wife’s ire that night). Not good. Got to home depot at 6am the next da, grabbed the fuses and we were back in action.
Day 2 went mostly without an issue. However, late last night I noticed that the furnace would kick on, run for approximately 45 seconds, turn off for approximately 10 seconds and then kick back on until the house gets to temp.
Day 3, same behavior as Day 2.
My question is, since this is happening to both units, if this is caused by the thermostat itself or if something else is going on rhG will require an HVAC pro?
I’m worried of the long term effects of my systems cycling so much.