Question about Ruud UBHC Air Conditioner

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Help on my ac unit

We are buying a house with a ruud upka-030jas ac unit. we have tried to turn it on. it blows the fan on in the inside of the house but the outside unit does not come on. there is no manual that we have found. is there a special trick or may something be wrong?

alyson capone

model# upka-030jas
serial# 4919 m2293 073

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Access the compressor common, start, run terminals. Disconnect the wires from them and test them with an ohm meter. You should have a measurable resistance between each terminal and infinite from any of the terminals to the compressor case. If that is good you want to check if you have a starting relay if the relay is bad the compressor will have very high amps and then go off on either the thermal overload of circuit breaker.

Posted on Dec 17, 2012

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Bad capacitor or low pressure switch or maybe safety switch on condesate pump or ptrap

Posted on Jun 04, 2012

Check if you are getting 24 volts to you contactor coil on your condensing unit. If you are that means your problem is in your condensing unit check voltage going to your condensing unit it will be usually 208 to 230 v.

Posted on Aug 25, 2008

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No special tricks alyson.....prolly just a breaker or fuse.check the main panel for a turned off breaker and at the unit there's a disconnect box that may have a bad fuse.

Posted on Aug 23, 2008

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