Thermostat - furnace doesn’t “pre heat” anymore

[wwalljr]

There is a reply near the bottom of this one from Wyze. Sounds like they are working on it.

Thermostat kicks on fan briefly before heat

@ttreat31 Thank you for the feedback. First of all, don’t worry. Blower fan operation will NOT impact your furnace life. I can explain the reason and our approach to improving the experience. We send the signal to the fan for blowing air and furnace to start the heat simultaneously when we see the heating load (call for heating). However, some control board, in your case, has its own device level logic to overwrite our command. It will check the inducer fan, ignitor temperature, valve pressu…