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Basement air in a winnebago 2000 adventurer. The ac makes a buzzing noise about every 90 seconds. It lasts maybe 10 seconds. Like the compressor is trying to turn on. It is 100 degrees here .We changed out the run and start capacitors about 3 months ago, but the symptoms were different then. but now, at least one compressor is working. What do we try ? Must we turn off the ac completely until it is fixed ? Thank you. Pam

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SOURCE: ac fan not turning on I can ''stick start it'' but which direction?

The condensor fan should be sucking air from the top and blowing it through the coils, probably a counter clockwise direction. The buzzing/humming sound is confusing to me. A humming sound sounds like a motor that can not turn over to start. A starting capacity would be needed. Just because you changed it out last year does not mean it is good. A buzzing sound sounds like a contactor problem. Contactors buzz and after a while, they will fail. In any case, you can "stick start" the condensor fan PROVIDED you are sure the ac compressor is working (this is for a short and temporary use). Also, you may have a high load duty capacitor that assists in the unit running. This will affect your condensor fan operation if it is not good. Unless you know all the components and operations of ac electrical, I would highly recommend calling out a professional.

Posted on Jun 26, 2009

motor1258
  • 6674 Answers

SOURCE: RVP 8000 Series Compressor wont stay running.

Try shutting everything else off temporarily that would draw any hydro in the unit, or even shut off all breakers except AC, and see what happens. See if it runs longer with everything else off. Double check nothing else on same circuit as your AC, and also confirm that 12/2 & not 14/2 cable size used for AC.

Posted on Jul 20, 2009

  • 4 Answers

SOURCE: Honeywell T8112 Air Conditioner Will Not Cool, But Blower Works

make sure the system switch is in the cool position, then press run program button and allow a couple of minutes for system to cycle on, if it doesn't come on press the button for lowering the set point, set it to 72 degrees and then press the hold temperature key.

Posted on Jul 26, 2009

TheMobilian
  • 8147 Answers

SOURCE: Bad compressor or bad capacitor??

Look at the capacitor. if it is leaky or swollen it is most likely bad

Posted on Sep 12, 2009

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  • 88 Answers

SOURCE: AC compressor won't start

hi,you might need a new compressor...you will need need to go back were you bought capacitor...buy a hard start capacitor too..this might crank the compressor...hope this helps.if you buy it..call an ill tell you how to wire it...if it dont ,you need new compressor...call michael..doctor airr..appl.repair...843-384-8474...

Posted on Mar 28, 2010

kingbrizzle
  • 407 Answers

SOURCE: Carrrier Central heat and air. Model 38CKC042300,

Unfortunately no, this is one of three things.
1. Compressor is worn and is starting to pull to many amps to operate. Can possibly be fixed by putting a hard start kit on the unit, but will have to be done by a technician.
2. Compressor has an internal short and will have to be replaced.
3. Fuses bad or under sized. Max fuse size is stated on information plate on outside unit.

Sorry to hear about your troubles and hope you can get it fixed soon!

Posted on Aug 15, 2010

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The condensor fan should be sucking air from the top and blowing it through the coils, probably a counter clockwise direction. The buzzing/humming sound is confusing to me. A humming sound sounds like a motor that can not turn over to start. A starting capacity would be needed. Just because you changed it out last year does not mean it is good. A buzzing sound sounds like a contactor problem. Contactors buzz and after a while, they will fail. In any case, you can "stick start" the condensor fan PROVIDED you are sure the ac compressor is working (this is for a short and temporary use). Also, you may have a high load duty capacitor that assists in the unit running. This will affect your condensor fan operation if it is not good. Unless you know all the components and operations of ac electrical, I would highly recommend calling out a professional.

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