Question about Ruud UBHC Air Conditioner

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Model #UHQA-101B Need help with problem? I just had a relay replaced and the unit is now sputtering ever now and again while the heat is running. The sputtering noise sounds very ******* the system. What areas should I check and how to check them or what to look for? If you could help this would be great.

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The first thing that needs to be checked before more parts get damaged is the secondary or control voltage from the transformer. with the system off this should read 25 to 27 volts a.c. on average. low voltage has several possible causes, if you do not have a digital electrical meter and the ability to use it i would suggest a contractor be called. Chattering of controls is an indication of a problem and will create other problems if not corrected

Posted on Dec 18, 2008

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Posted on Jan 02, 2017

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Your sentence is hard to understand because there is no punctuation. But, I think you are saying that the Outside unit is still running when the inside unit is off and the Thermostat indicates it should be off. If so, you have a stuck relay outside in the compressor/condenser unit. This is common. The contacts get hot and fuse themselves together. You will have to remove the cover on the unit outside to expose the relay. MAKE SURE THE BREAKER IS OFF. If you house is to code there will be a disconnect box on the wall just above the AC unit outside. PULL THE DISCONNECT> then use a flat head screw driver and slight pry the contacts apart. If they are fused very tight you may need to replace the relay. If they break free put every thing back together and you're done. If you this happens again soon you will need to replace relay.

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I hope you found this information helpful to you. Good Luck in your endeavor! :-)

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Before I can help you I need you to make a list of what you have and answer these questions

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THEN

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1 Answer

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