Capacitor On Furnace Motor

Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position.

Capacitor on furnace motor.

Like a battery the capacitor stores. But most furnaces by far have a single capacitor. Find dry electrolytic nonpolarized start capacitor models in a wide range of sizes and mfd ratings. When you need motor start and run capacitors shop at grainger.

The blower motor in your furnace blows hot air through the ducts and into your home. Furnace capacitor some furnaces don t use a capacitor while others will have both a start and run capacitor. If it doesn t start turn the thermostat back down or cut the power to your furnace. Letting it run longer could make the problem worse and do more damage to the furnace resulting in a much higher repair bill.

When the run capacitor on a permanent split capacitor motor for a furnace is not working the blower fan will not operate. The wiring should be checked for the proper electrical currant reaching all components before suspecting a faulty run capacitor. Remove any bolt holding the old capacitor in place. Your furnace uses a lot of energy so to supply the extra energy needed to power the blower gas furnaces have a capacitor.

Smith century dl1056 1 2 hp 1075 rpm 3 speed 115 volts6 5 amps 48 frame sleeve bearing direct drive blower motor. What is a capacitor. Any capacitor with the same voltage and micro farads can be used interchangeably. Gas entering your furnace is ignited by the pilot light and burners heat the air.

How to check a run capacitor. How replace a furnace capacitor. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk. Round molded cases can protect start capacitors from oil dirt moisture and grease helping prolong maintenance free performance and reduce replacement costs.

If the furnace is receiving power turn up the thermostat and see whether the blower motor starts within the next few minutes. Locate the capacitor usual close to the furnace motor. Example furnace blower motor on amazon a o. Turn off all power to the furnace.

A bad capacitor can cause damage over time to a furnace s blower motor. The furnace will heat up but the blower does not come on. The blower then moves the warmed air into and through the ductwork in your house. Take pictures of the wiring to reference back if needed.

Its capacitor works like a battery and stores the energy needed by the blower to work properly.