If your thermostat is blank, with nothing on the control panel, start by checking to see if the batteries are dead or if your circuit breaker has been tripped. If the safety switch on the furnace is activated, it could also cause your thermostat screen to go blank. If these common reasons are not at fault, give us a call. And don’t wait, because if your thermostat isn’t sending the right signals to your furnace, your home is going to get cold quickly!