Furnace won’t start before a cold night? Check the thermostat, filter, and breaker first

https://felixhznc152.trexgame.net/heat-pump-blowing-cold-air-in-heating-mode

Furnace won’t start before a cold night? Check the thermostat, filter, and breaker first. If it still won’t fire, igniter or control board issues may be to blame. Emergency service can keep pipes from freezing.