Today was rather hot here, so I saved the furnace for last so the house wasn’t super hot. I turned the thermostat all the way up, intending to just let it run a few minutes and turn it back down. Nothing happened. Nada. After a few minutes of nothingness, I returned to the thermostat to find that the max setting went to 90, and it was 89 in the house.
Man it was warm today.