Capacitor On Furnace Motor

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Capacitor on furnace motor.

How to check a run capacitor. A faulty capacitor may prevent the blower from functioning at all. Its capacitor works like a battery and stores the energy needed by the blower to work properly. Your furnace uses a lot of energy so to supply the extra energy needed to power the blower gas furnaces have a capacitor.

What is a capacitor. When you need motor start and run capacitors shop at grainger. Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position. Only let it run just long enough to hear the hum.

How replace a furnace capacitor. Gas entering your furnace is ignited by the pilot light and burners heat the air. Take pictures of the wiring to reference back if needed. The blower then moves the warmed air into and through the ductwork in your house.

Locate the capacitor usual close to the furnace motor. 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. Any capacitor with the same voltage and micro farads can be used interchangeably.

The furnace will heat up but the blower does not come on. Find dry electrolytic nonpolarized start capacitor models in a wide range of sizes and mfd ratings. Remove any bolt holding the old capacitor in place. 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. Like a battery the capacitor stores. But most furnaces by far have a single capacitor. If it doesn t start turn the thermostat back down or cut the power to your furnace.

A bad capacitor can cause damage over time to a furnace s blower motor. Example furnace blower motor on amazon a o. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk. Smith century dl1056 1 2 hp 1075 rpm 3 speed 115 volts6 5 amps 48 frame sleeve bearing direct drive blower motor.

If the furnace is receiving power turn up the thermostat and see whether the blower motor starts within the next few minutes.