Question about Ruud UAKA030 Air Conditioner

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Buzzing on unit

I have a UAKA-037JA Ruud AC unit. I just bought the house. No one has lived in the house for about 2 years. When I turn on the t-stat to cool the unit just buzzes. Air is coming out of the vents but the unit is not cooling. I pulled the service panel to see if anything looked wrong. I didn't find anything. Is some part of the unit shot?

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Is the buzzing in the outdoor half of the system? If so
your possibilities are.
buzzing could be the contactor. In the control compartment on the side of the unit there is a small brown component that has wires to one side and the other . There are contacts in the center like points on a car. If the points are pulled in look for ants in between the contacts. Always secure power to the outdoor unit before touching anything inside. If the points are pulled in check your breaker to the outdoor unit. Turn the breaker off then back on. Breakers sometimes trip but look ok.
Buzzing could be thee coil to the contactor itself, sometimes with age the coil will breakdown and cause noise.
if you give me more information I can focas in closer to a solution

Posted on May 16, 2008


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