Furnace Circuit Breaker Problems

2 be sure the furnace s circuit breaker is on or that its fuse has not blown.

Furnace circuit breaker problems.

Overload due to loose electrical connection. Failed time delay relay. Your furnace may be tripping the circuit breaker because of one of these reasons. Try turning the fan to on using the fan switch on the thermostat to test for power to furnace.

Here s the next step in furnace troubleshooting. Check the ssu switch it looks like a light switch on a gray box located at the furnace to be sure it is in the on position. If the circuit has blown or tripped reset the circuit breaker by flipping it all the way off and then on again. This problem can be avoided by simply scheduling for regular hvac maintenance.

Don t keep resetting the breaker to turn the furnace back on until you fix the underlying problem. No power from the rvs battery to the furnace relay switch. The compressor which sounds like a refrigerator and fan should be running. Breakers do go bad from time to time and cause nuisance trips.

Your furnace might share a breaker with another appliance that caused the trip or the circuit breaker itself may have. A furnace that starts up but immediately trips the breaker can be caused by an electrical short circuit or ground fault inside of the furnace itself. Another reason why your breaker is tripping is a faulty furnace motor. Short circuits in your furnace happen when a bare hot wire comes in contact with a neutral wire.

Overload due to furnace blower overworking. Ensure that there is power to the furnace. The fix is to replace the breakers. Still haven t found the problem.

A bad circuit breaker can be causing the furnace breaker to be tripping. Can be caused by a bad wire or by power not reaching the thermostat. Common rv furnace problems rv furnace blower won t start. If the furnace fan kicks in the problem isn t in the furnace.

Unless you know what you are doing this will require the services of an electrician or hvac technician. Check the circuit breakers at the electrical panel. In some instances a tripped circuit breaker isn t your furnace s fault at all. The system s wiring usually wears down after years of use.

Other issues that can contribute to an overworking furnace blower include home air leaks duct leaks and closed or blocked off air registers. If the machine doesn t power on check the circuit breaker. Next check the outside condensing unit. If the fan still won t start call a pro the fixes shown here won t work.

As a result shorts and other issues might occur therefore tripping the circuit breaker. There are issues with your furnace motor. Not enough power from the thermostat to the furnace. Let s explain the above problems in more detail.

This can be caused by a number of reasons. If the fan doesn t run try resetting the furnace circuit breaker. Check both the main electrical panel and any secondary subpanels that supply power to the unit.