Capacitor On Furnace Motor

Gas entering your furnace is ignited by the pilot light and burners heat the air.

Capacitor on furnace motor.

What is a capacitor. When you need motor start and run capacitors shop at grainger. When the run capacitor on a permanent split capacitor motor for a furnace is not working the blower fan will not operate. Your furnace uses a lot of energy so to supply the extra energy needed to power the blower gas furnaces have a capacitor.

The blower then moves the warmed air into and through the ductwork in your house. Locate the capacitor usual close to the furnace motor. A bad capacitor can cause damage over time to a furnace s blower motor. How replace a furnace capacitor.

Example furnace blower motor on amazon a o. Find dry electrolytic nonpolarized start capacitor models in a wide range of sizes and mfd ratings. 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.

If it doesn t start turn the thermostat back down or cut the power to your furnace. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk. Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position. How to check a run capacitor.

Hqrp 15uf 370 440v capacitor works with ac electric motor run start hvac blower compressor furnace 15mfd 27l567 97f9004 z97f9004 97f9004bz3 cbb65 ul listed 4 4 out of 5 stars 182 11 95 11. Letting it run longer could make the problem worse and do more damage to the furnace resulting in a much higher repair bill. Its capacitor works like a battery and stores the energy needed by the blower to work properly. Remove any bolt holding the old capacitor in place.

Take pictures of the wiring to reference back if needed. Like a battery the capacitor stores. The furnace will heat up but the blower does not come on. The blower motor in your furnace blows hot air through the ducts and into your home.

Only let it run just long enough to hear the hum. But most furnaces by far have a single capacitor. Any capacitor with the same voltage and micro farads can be used interchangeably. Round molded cases can protect start capacitors from oil dirt moisture and grease helping prolong maintenance free performance and reduce replacement costs.

A faulty capacitor may prevent the blower from functioning at all.