Question about Ruud UAKA030 Air Conditioner

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Fan won't run, and buzzing sound

My ruud ac unit won't run the fan, and i hear a buzzing sound coming from it

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Motor's shot. New motor and capacitor should fix your problem

Posted on Jun 12, 2008

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Have a Ruud Achiever Model number UAKA-037JAZ that won't run since yesterday. When the air kicks on it simply makes a buzzing noise and the fan doesn't spin. Can anyone help?


try spinning by hand when the unit make the buzzing sound. to see if the capacitor is bad. If the fan runs replace the cap. If not motor probably is bad. See if it spins freely. this is a good starting place. need to check if the buzzing is the contactor and there is no power to the condensor. The contactor will buzz even though the main breaker is off or tripped

Aug 10, 2009 | Ruud UAKA037 Air Conditioner

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Ruud ac wont come on. mfg 03/99. thermostat


Have an electrician check the connections in your panel, this sounds like a loose/bad nuetral connection

Jul 26, 2009 | Ruud Air Conditioners

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Is the outside unit running? Fan and compressor?

Jun 29, 2009 | Air Conditioners

1 Answer

Condenser is buzzing so there is power, but the


The buzzing sound is from the contactor and only means you have low voltage at the unit,Check and make sure you have 240 volts at the unit and post back.

Jun 27, 2009 | Ruud UAMB Air Conditioner

1 Answer

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Push in on the door safety switch,and use a screwdriver to help start the fan motor, while it calling for fan-on, if it takeoff and run , youll probably need to changeout the fan motor & capicator!

Sep 01, 2008 | Ruud UBHC Air Conditioner

2 Answers

There's a buzzing sound coming from my central air conditioner unit outside. The fan is quiet but I hear a buzzing sound. Should that be happening? Sounds like there's something loose.


Things that are not broken: The big relay that powers the compressor often hums or buzzes when the unit is running. Several brands of heat pumps keep their reversing valve "on" any time the thermostat is set for "cool". They buzz, too.

If something really is loose, the only way to fix it is to look at the machine and take off panels until you find what is buzzing.

Jul 20, 2008 | Air Conditioners

1 Answer

Compressor problem?


The buzzing is your compressor trying to start. It is going off on internal overload caused by heating up of the motor windings.If you have an amp meter you could check the amp draw of the comp against the locked rotor amps listed on the tag You could try to have someone test your run capacitor, which looks like a can. Could be round or oval with wires coming off it. Or try a hard start capacitor and relay to bust it loose if compressor rotor is stuck. If that doesn't do it the comp is bad.

Jun 10, 2008 | Ruud UBHC Air Conditioner

5 Answers

Ruud achiever 10 seer air conditioner


It sounds like your condenser fan motor may be locked up or the capacitor that helps give the condenser fan motor a kick to get it started may be defective. Try turning your system on and using a long screwdriver try to push the fan blade on the condenser fan motor to see if it will run normally if you give it the starting boost it needs.If it does run at full speed and doesn't over heat or start and then slow down then you probably only need to replace a simple 10-12$ capacitor. If it barely turns, makes an odd humming sound or overheats etc. then you will have to replace the condenser fan motor. This is assuming that the outdoor condenser has the 220v supplied and the 24v supplied to the compressor relay, that the compressor relay is engaged and suppling 220v to the condenser fan motor.

May 28, 2008 | Ruud Matching Split Air Conditioner

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