Furnace Blower Capacitor Test
Set a voltmeter to the x1 setting.
Furnace blower capacitor test. The capacitor will still hold a charge even without power. If the system is currently running then an under load test may be best. Decide if under load or bench testing is best. Shut off the power to the furnace at the fuse.
If the system is not running then a bench test will be the best bet. Remove the blower housing inside the furnace to access the capacitor. Bench or under load test. If you re concerned that your furnace capacitor isn t operating properly you can test it by following a few simple steps.