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Central air problem

Okay. To begin with the fan in unit wasn't kicking on so I replaced capacitor in the video and also replaced contact switch which is also in video. Unit ran great. Switched on and off at set temp and no problems for past two weeks. Today all of a sudden white smoke with electrical smell started coming out of vents in house. Looked in

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  • 8 Answers

Try spinning the blower motor. If it does not spin freely then the motor is bad. The capacitor being bad will cause this to happen. If the capacitor was not the right microfarad that will also cause the motor to go bad. Also you can just put you nose to the blower motor and try to smell if it smells burnt

Posted on Apr 29, 2013

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Posted on Jan 02, 2017

Master_Tech
  • 770 Answers

SOURCE: My central air never kicks off

Sounds like you need to recharge it .. To tell while the unit is running go outsiode and feel the large insulated copper line going to the unit it should be cold to point od sweating like a can of coke you take out of the refrigerator and sit on the counter. also feel the air coming out of the unit outside it should be warmer than the outside air if not your freon is low

Posted on Jun 09, 2008

  • 14 Answers

SOURCE: Cool air, but no fan, electrical smell inside house

most like it the motor windings are burn and you need to replace the blower motor

Posted on Sep 28, 2009

  • 674 Answers

SOURCE: I have a 561c central

Sounds like you need another capacitor since it will run if you turn it by hand to get it started. If you have a clamp on ammeter check the current draw on the fan motor.

Posted on Aug 23, 2010

kingbrizzle
  • 407 Answers

SOURCE: central air conditoner outside unit

Well, the answer is yes. I have seen a bad capacitor cause a fan motor to run backwards. BUT..... After replacing the capacitor and WIRING it up the right way, everything should be fine. A lot of aftermarket condenser fan motors are reversible, so it can run counter-clockwise (CCW) or clock-wise (CW). However, most factory fan motors come one directional and on your specific unit, the air should always push out of the top. Running the unit with the fan going backwards will actually some-what do it's job, but damage other components like the compressor because it runs at higher operating pressures than what it is designed for.

Have someone else look at it! That's going to be the best advice I can give you. If they can prove that a capacitor caused the motor to permanently run backwards..... I want to know! Hope this helps and good luck with your unit.

Posted on Jun 23, 2012

  • 747 Answers

SOURCE: fan wont kick on

a bad fan motor they will go bad is the blower on your inside unit or the condenser assembly outside either could be a bad motor

Posted on Jul 13, 2012

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Well, the answer is yes. I have seen a bad capacitor cause a fan motor to run backwards. BUT..... After replacing the capacitor and WIRING it up the right way, everything should be fine. A lot of aftermarket condenser fan motors are reversible, so it can run counter-clockwise (CCW) or clock-wise (CW). However, most factory fan motors come one directional and on your specific unit, the air should always push out of the top. Running the unit with the fan going backwards will actually some-what do it's job, but damage other components like the compressor because it runs at higher operating pressures than what it is designed for.

Have someone else look at it! That's going to be the best advice I can give you. If they can prove that a capacitor caused the motor to permanently run backwards..... I want to know! Hope this helps and good luck with your unit.

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