my air conditioner is not running. The fan blows, and the filters have been recently and regularly changed. The fan in the outside unit doesn't turn on. The unit buzzes briefly once in a while as though there is electricity flowing into it. The motor housing for the fan is much hotter than seems justified per outside temperature.
Make : Carrier
Changing the filters, double checking the breakers,
Chat Conversation Started
It could be the fan motor is bad. Can you spin the fan blade at all?
Yes, the fan blades spin freely when pushed.
Follow the electrical wiring comin out of the house to that outdoor unit, you will see an access panel. Take that panel off the unit and you should see a silver cylinder. That is the capacitor. Does it look like a soda can that was left in the freezer too long? Picture follows.
Yes, the cylinder looks like the one above
Is there anyone attending to this chat
If it looks like that one and it is bulging like that one, you need a new capacitor
You will need to get one that is the same size. By that I mean if this one is a 35/5 MFD 440 VAC that is what you need to purchase.
Anything more and it will overpower the unit, anything less and it will not run right.
It's domed at the top where the wires connect. The sides are not buldging.
That is a bad cap. A bulging top means it has exploded internally and must be replaced. That is why your unit is not working.
Do have a recommendation for how to order or purchase a new one?
You may be able to get one at a Johnstone supply if there is one in your area. Another place is Grainger. You can also try a local AC supply house. The problem with supply houses is they generally do not sell to homeowners
Check here for a Johnstone location near you
Thanks so much. I appreciate your trouble!
6 years in the HVAC industry.
Not a problem. This is a fairly easy repair. Just make sure you note location of wires when switching out the cap.