No Heat? Make sure that your thermostat is set above the room temperature or in the “heat“ position. If you have a digital thermostat and the display screen is blank, you either need new batteries or the power supply has been interrupted Check for a tripped circuit breaker or a blown fuse. Look to see if the power switch for the heating system is turned on. Sometimes, these get turned off accidentally. Check your fuel supply. If you have an oil heating system, press the reset button on the burner relay - ONCE do not push it AGAIN!. Pushing the button mulitple times can “flood“ the system. Call 1-800-451-3835 for service (charges may apply).