Why is my furnace blowing fuses?

Blown fuses usually result either from an appliance putting too much strain on the fuse or by an electrical short in the system. Since some furnaces can require a lot of electricity, homeowners must ensure that they have an adequate electrical system to support the furnace.

How do you reset HVAC fuses?

Step 1: Turn off your AC at the thermostat.
Step 2: Find the circuit breaker box.
Step 3: Reset the AC’s circuit breaker.
Step 4: Wait 30 minutes.
Step 5: Turn the thermostat back to “cool” and celebrate.

What to do if your furnace is blowing fuses?

If your furnace is blowing a fuse repeatedly, leaving you with no power to the furnace, your first step should be to call in an experienced HVAC repair professional. It’s possible that the problem could turn out to be with your electrical system rather than the furnace itself,…

What should I do if my furnace wont turn on?

If the switch is on and the furnace still lacks power, check the furnace’s main and secondary electrical panels. If the circuitry has been tripped in these panels, turn back on the circuit. The furnace should start within five minutes.

Why does my furnace have an electrical problem?

It’s possible that the problem could turn out to be with your electrical system rather than the furnace itself, but your HVAC system is the most likely suspect, so it makes sense to start there. Electric furnace problems can be tricky to solve because there are so many possible causes, and also because the problem can be intermittent.

What causes a fuse to short on an electric furnace?

Electric furnace thermostat control wire. Your furnace’s control board has a separate fuse that protects it from getting too hot. If someone is poking around your furnace and is not too careful, they could more wires so that they come into contact with the furnace’s wire frame, causing them to short and blow the fuse on the furnace board.

What to do if your furnace fuse is blown?

All you have to do is look at the metal bar. If the bar is broken, then the furnace fuse has been blown. If you need to know where to buy a new fuse for the furnace, you need to make sure to get the same wattage ratings as before.

Why does my furnace blower keep catching on fire?

Eventually all that dust ends up in the blower motor, which can then overheat, causing the fuse to burn out and possibly even catch on fire. The fix is simple in this case: replace the furnace fuse, replace the filter, and have the system thoroughly cleaned.

What does it mean when your furnace won’t turn on?

Easy Troubleshooting in 7 Steps You come home from work, and your house is freezing: the furnace has stopped working. Most of the time when a furnace will not turn on, it is because the thermostat or furnace itself has lost power.