Question about Ruud UBHC Air Conditioner

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Buzzing noise when comes on but then stops anddoesnt work....no ac outside compresser fan working copper line frozen over

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Have it checked for freon leak
Clean coils
If this was helpful please rate me.
Leo Ponder Appliance-Tyler,Texas
imufo2@sbcglobal.net

Posted on Aug 06, 2010

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1 Answer

Central air unit (the outside unit) works fine then fan stops and makes a buzzing or no noise at all, later works fine again then again fan stops


I would start by testing or replacing the blower motor resistor, it's located next to fan, fan wires goto it. When fan stops try tapping on it. The resistor is more common than the fan

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is the compressor and fan running outside ? Is the large copper line going to the outside unit a little cool or noe at all ? Sounding like low on refrigerant.

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Turned on AC was running fine. 30 minutes later began to hear a strange noise. Opened AC/Furnance closet & heard a sound best described as air letting out of a tire. It seemed to be coming from...


Hi!!

This means that the condenser fan motor (outside unit) failed, this caused to build hi pressure and either activated a safety valve to release the extra pressure or blew a line and R22 Refrigerant escaped from system.

The fix is to replace motor fan and capacitor find the leak and refill system with R22 Refrigerant Gas. It is safe to turn on the Fan Only mode on the Thermostat until a HVAC Tech arrives.
To perform this job parts and labor included will cost: about $300 -.$400. Look on the Yellow Pages for a Tech in your neighborhood.

Good Luck!! Don't forget to Rate this post!!

Aug 13, 2010 | Goodman CKL42AR42 Air Conditioner

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Fan not working on outside AC unit


The buzzing noise is probably the fan motor. Is the compressor running? First make sure that there are no tripped breakers. After that kill the power and check the capacitor with a multimeter. If that checks good then check the fan motor windings with the multimeter. Let me know if you have any questions.

May 26, 2010 | Intertherm P3RA-060K Air Conditioner

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38CKC036 Air Conditioner: outside fan will not come on makes a humming noise...


If the humming is your compressor running (feel the large copper line going into the unit, it should feel cold aftter a few minutes of run time) then the fan motor or the capacitor or both need to be replaced, check for voltage to the fan motor when the unit is "humming" if it has voltage and will not start replace the fan motor and the capacitor. hope this helps.

May 18, 2010 | Carrier 38CKC036 Air Conditioner

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Loud buzzing noise doesnt stop freezer is still working everything still frozen, just loud noise coming from back bottom of freezer where the parts are, and compressor is very hot to the touch. freezer is...


Locate what is making the noise. There is a fan in the freezer behind the rear cover inside. There is a fan underneath accessed from the rear behind the cardboard backing. The compressor is also there with a starter/overload relay which could make the noise.

Aug 20, 2009 | Frigidaire 20.6 cu. ft. Upright Freezer...

1 Answer

My ac works inside, fan comes on and blows fine ,but outside fan wont kick on just makes buzzing noise and no cold air just air


Hi, normally when your freon is low, system won't work, look for filter dryer, follow high pressure tube from compressor to condenser, filter dryer normally have sight glass where you can see freon moving in system, if there's bubbles, you need freon, freon should be charge until glass get clears, hey remember to always charge from low or liquid side of system.

Aug 02, 2009 | Heating & Cooling

1 Answer

Outside AC Unit Making Noise but the Fan is not working


It could be the capacitor on the fan motor has gone bad.

Jul 20, 2009 | Heating & Cooling

1 Answer

Fan will not work on outside unit.


Check the voltage to the contactor coil, it will do that if the voltage is low. This is the 24 volt part.

May 17, 2009 | Intertherm P3RA-060K Air Conditioner

2 Answers

My AC unit keeps freezing up on the copper lines going into the house from the outside unit. It also freezes up on the inside lines and the air is not cooling my home down.


Operate your air conditioner with the fan in the on position. But first turn the fan on, turn the temp up or shut the cooling off. Your coil is more than likely frozen over. At night when outside temperature drops the refrigerant pressure and temperature in the system also drops. This action can cause icing of the cooling coil, with the fan in automatic everything shuts down at the end of a cooling cycle. Thus no air movement to melt ice on previous cooling cycle.

May 09, 2008 | Heating & Cooling

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