Capacitor On Furnace Motor

What is a capacitor.

Capacitor on furnace motor. Furnace capacitor some furnaces don t use a capacitor while others will have both a start and run capacitor. The furnace will heat up but the blower does not come on. But with a bad capacitor your blower cannot function well and may put your family s comfort at risk. Find dry electrolytic nonpolarized start capacitor models in a wide range of sizes and mfd ratings.

Locate the capacitor usual close to the furnace motor. The blower then moves the warmed air into and through the ductwork in your house. If the furnace is receiving power turn up the thermostat and see whether the blower motor starts within the next few minutes. But most furnaces by far have a single capacitor.

Like a battery the capacitor stores. Gas entering your furnace is ignited by the pilot light and burners heat the air. Before checking the capacitor make sure the fuse controlling the furnace is flipped to the on position. 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.

Only let it run just long enough to hear the hum. When you need motor start and run capacitors shop at grainger. A bad capacitor can cause damage over time to a furnace s blower motor. The wiring should be checked for the proper electrical currant reaching all components before suspecting a faulty run capacitor.

Example furnace blower motor on amazon a o. Its capacitor works like a battery and stores the energy needed by the blower to work properly. Turn off all power to the furnace. If it doesn t start turn the thermostat back down or cut the power to your furnace.

Remove any bolt holding the old capacitor in place. Round molded cases can protect start capacitors from oil dirt moisture and grease helping prolong maintenance free performance and reduce replacement costs. The blower motor in your furnace blows hot air through the ducts and into your home. Smith century dl1056 1 2 hp 1075 rpm 3 speed 115 volts6 5 amps 48 frame sleeve bearing direct drive blower motor.

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. How to check a run capacitor. A faulty capacitor may prevent the blower from functioning at all.

Take pictures of the wiring to reference back if needed.