Usually, your heating system is rather reliable, so it can be frustrating when your furnace suddenly stops working. If you get no heat at all from your furnace, it usually means that the burners aren’t lighting up in the first place. Repairs are usually a job for professionals, and most experts don’t recommend that you attempt to check inside the unit on your own for your safety and because there are so many parts that it can be difficult for a homeowner to understand what exactly has gone wrong. But there are a couple of things you can check before calling for furnace repair.
The Thermostat and the Circuit Breaker
The one part you should always check first is the thermostat. This may seem obvious, but professionals often arrive to a home only to find that a child has changed the programming or that the thermostat has accidentally been switched into cooling mode. Try turning the temperature a bit to determine if the heater is working at all. But keep in mind that if you have to set the thermostat to a very high temperature before it finally clicks on, you’re not in the clear. Something is causing your unit to run incorrectly and it must be addressed before the parts become too worn down.
You can also try checking your fuse box or circuit breaker. Modern gas furnaces still rely on electricity to start up, and you may only need to reset a tripped breaker or replace a blown fuse.
Call for Repairs and Schedule Regular Maintenance
When an examination of the thermostat and the circuit breaker doesn’t yield any success, calling a technician is your best bet. It may turn out that a small part like the flame sensor needs replacement or cleaning, or that a larger problem requires you to replace your unit. But it’s better to know about the problem now than attempt to fiddle with the system on your own only to have it fail again soon.
Scheduling regular maintenance is also recommended to keep your furnace running as it’s supposed to and prevent burner problems from occurring. With furnace maintenance, a technician will clean the burner, the flame sensor, and any other part that could cause the unit to stay turned off or to run inefficiently. The professional will also inspect the unit and make any necessary adjustment.