Thursday, 27 January 2022

3 thermostats later, heat off in a.m., suddenly comes on mid-morning

Hello,
This is the 3rd time this problem has occurred in the last month. My HVAC is set to heat, 70 degrees. Works consistently. Get up in the morning randomly and thermostat is still set on 70, temp in house is much lower. Weird part - 3 times in a row this has happened and around mid-morning, the heat comes back on and runs fine. When I say 3 times in a row, I mean it happened, and my friend changed out the thermostat. Worked fine for several days. Happened again, friend changed out thermostat. Worked for a week, happened again. Changed out thermostat, happened again. ALWAYS the heat has come back on mid-morning (usually when I'm at Home Depot, buying a new thermostat!). Never happened at any other time of day.

Has anyone heard of this? Thanks.


source https://hvac-talk.com/vbb/threads/2235933-3-thermostats-later-heat-off-in-a-m-suddenly-comes-on-mid-morning?goto=newpost

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