GulfCoastPoke Oklahoma State Fan Port of Indecision Member since Feb 2011 799 posts
re: How to start home AC by manually spinning the fan?Posted by GulfCoastPoke on 7/25/11 at 3:52 pm to Schwartz
you can take a twig and give the fan blade a push. this MIGHT make the fan start up, but likely won't kick the compressor on. I did this last summer when my capacitor blew. I fixed it myself for free as opposed to $300 or so.
Raleigh Tiger LSU Fan Raleigh, NC Member since Oct 2003 414 posts
re: How to start home AC by manually spinning the fan?Posted by Raleigh Tiger on 7/25/11 at 3:58 pm to RJYH
I had to do this at the start of the season at my last house. With the air OFF I would shove a screwdriver up against the back of the electric motor shaft and give it a slight turn. It was just enough to break up any buildup so the motor could spin freely when turned on.
Where can I get a replacement capacitor? Mine has been giving me problems and I have had to manually start it a couple times. Its working fine for now, but I want to replace it before it goes out for good.
re: How to start home AC by manually spinning the fan?Posted by eitek1 on 7/25/11 at 4:02 pm to terd ferguson
This only works if you have a bad start capacitor on the fan. This will do nothing for the compressor.
This is how it works. When you request your act to come on the compressor starts and the fan outside starts to spin. If the span doesn't spin due to a bad start capacitor the compressor will overheat and shut off due to temperature.
If this is the case as soon as you hear the compressor kick on you can spin the fan to get it started and it will run until it kicks off. When it trys to start again you have to kick the fan off again by hand.
The start capacitors only function is to get the fan motor spinning. After it starts spinning it's job is done. If it's bad it won't ever start the fan and you are SOL.
re: How to start home AC by manually spinning the fan?Posted by WoodCrafter on 7/25/11 at 5:00 pm to RJYH
You will need two people for this, probably. Turn off the power to the indoor unit. On the thermostat set the fan to "on" instead of auto. Take the door off to access the blower. Have the second person standing at the breaker where you turned the power off from. Spin the blower wheel in the CORRECT direction. Have your helper turn the breaker back on.
If it is just a bad capacitor the motor will keep running, do not set your thermostat back to auto for the fan. In other words, let the fan run continuously. You will be good to go, most likely, until you can replace the capacitor.
One more very important thing, don't listen to a damn thing eitek1 says about A/C matters. Repeating that bull shite to an A/C contractor, or the cashier at Kwiky Mart, will get your arse raped and pillaged, we tend to despise "highly intelligent" people.