Furnace Blower Motor Capacitor Symptoms

The capacitor helps the fan motor run.

Furnace blower motor capacitor symptoms.

If the furnace is receiving power turn up the thermostat and see whether the blower motor starts within the next few minutes. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk. This is the most common design type. While the run capacitor stays on giving the motor extra torque when needed.

A bad or faulty capacitor can exhibit many signs and symptoms. Most are found on the compressor. Delivering torque to the fan motor if the capacitor is faulty there won t be enough power delivered and the blower wheel fan belt and other important components can cease to operate. Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position.

Heat pumps and air conditioners use a dual run capacitor which connects to both the compressor and the fan while furnaces use a single run capacitor connected to the blower motor. Have only a single capacitor. To inspect the capacitor make sure it is discharged. Not have a capacitor at all.

Like a battery the capacitor stores the extra energy that is needed to jump start the furnace blower. Some units do not use a capacitors to run the blower motor. Your furnace uses a lot of energy so to supply the extra energy needed to power the blower gas furnaces have a capacitor. The start capacitor gives a fan motor the torque it needs to start spinning then stops.

Indoor blower motor run capacitor. The blower then moves the warmed air into and through the ductwork in your house. Its capacitor works like a battery and stores the energy needed by the blower to work properly. To answer this question the panel door to the furnace will need to be removed.

Some models include an auxiliary start capacitor that helps jump start the motors. Have two capacitors called a start and run capacitor. Problem indicators what you can do. That means the start capacitor is only needed at the beginning of each cycle while the run capacitor runs throughout the cycle.

Once it is discharged use a capacitor tester to check the. The blower motor in your furnace blows hot air through the ducts and into your home. Where is a furnace capacitor located. A start or run capacitor can be combined into one capacitor called a dual capacitor with three leads but can be split between two separate capacitors.