Maintaining your furnace in good working condition is a crucial aspect of owning a home. The best way to achieve this is through regular maintenance performed by an HVAC expert. Check that the circuit-breaker of your furnace has not been tripped. This safety measure was designed to protect against carbon monoxide. Check your Thermostat The thermostat sends signals between sensors within your home and to the furnace telling it what time to turn off. This thermostat has an LCD screen whic...