So what exactly is the problem.
Air conditioner fan not spinning but hums.
If the capacitor has gone bad the fans don t have enough of a jolt to move.
You check your outside unit and notice that the outdoor unit is humming like normal but the fan isn t spinning and is making a buzzing noise.
First you may have a faulty capacitor.
The dual run capacitor was bad causing the fan motor to buzz.
Just make sure you turn off the pow.
When the thermostat clicks on the capacitor kick starts the compressor and fans.
Inside your outside unit the air conditioning contactor serves to turn on the outside unit when the house temperature rises to the level where cooling is required.
Just a quick video on how to fix your home air conditioner.
Unfortunately air conditioners can break down for a number of reasons leaving you to sweat it out while you search for a reliable hvac company to make the repair.
An ac unit humming but not turning on properly can signal several things.
Why is my ac running but fan not spinning.
If your outdoor ac unit is humming but the fan isn t running that most likely means you have a bad fan capacitor.
This contactor can fail mechanically or electrically and will produce an electrical murmuring sound at failure.
Take a stick or screwdriver and spin the fan blade.
Don t risk damaging your compressor.
If the motor is still spinning albeit slowly it is not moving enough air for your hvac unit to function normally.
So if the capacitor attached to your fan motor is bad the fan won t start spinning.
The hvac s fan motor could be seized unable to spin but power is still going to it creating resistance that produces a loud and noticeable hum.
You can kind of think of it like a battery that boosts your air conditioner.
With the power off to your condensing unit here is a simple test you can do.
Air conditioner fan not spinning but hums no new to problem fan a but times not how and hums york canadian city air this the conditioner one spinning in theres alexander hum capacitor an air conditioner persistent diagnose noisy indoor unit noisy furnace commonly reported hvac hannabery hvac.
The capacitor is the small metallic object on the side of your outdoor unit.
Summers in central michigan are hot and you need a reliable air conditioner to provide relief indoors when it s too hot and humid to be outside.
One frustrating scenario the hvac.
Do not use any kind of conductive metal or material to do this.