Question about Ruud UAKA042 Air Conditioner

1 Answer

When we turn on our central A/C the fan comes on & the compressor comes on for about 10 seconds & quits

We have an older Ruud Central A/C unit. I have replaced the capacitor & it still does the same thing . Fan goes on , Compressor starts( the lights dim when it does) it runs for about 5-10 seconds & the compressor quits, Fan keeps going . Thank you in advance for any hints : )

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 21 Answers

Sounds like a compressor problem to me.Have you tried a hard start kit?This increases the starting torque.Put an amprobe around the common wire to the compressor and see the amperage draw is on start up.It sounds to me the compressor is cutting off on the internal overload.This is located inside the compressor on the common winding.There shoud be a tag on the condenser housing that gives you the info on the unit.Look for:FLA-full load amps,which is normal running amps and LRA-locked rotor amps,which tells you if the compressor is locked(bad).This will be a high number.If this is the case the compressor will have to be replaced.If it is an older A/C,I'd replace the condensing unit. And if possible, replace the indoor unit also.You'll be pleased with the results.Hope this helps. Gregg

Posted on May 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ruud a/c, fan works but no cold air.


if the outside fan is running you have correct voltage. compressor capacitors could be bad.

Jan 11, 2014 | Ruud Central System Air Conditioner

1 Answer

When my outside unit kicks on it tries then quits? The inside fans still blow cool air, and the furnace can be turned on to emergency heat.


u may just have bad capacitor see if it looks swelled up if so theres ur problem if not u may have lost a leg of power or u may have a locked up compressor but it sounds like u have a bad capacitor or a bad contactor

Feb 24, 2010 | Ruud Central System Air Conditioner

1 Answer

We have a fairlynew 5 ton Central Ruud or Rudd unit that it is so noisy in the yard that we can not stay out there. We thinkit is the compressor. Help


I have a new 13 seer rheem or ruud same thing. I can not here it run. Uou must have a bad compressor. Ruud put schroll compressor in and when they start to go out they will drive you nuts they are so loud. Get it changed before your warranty runs out. Ruud will change your compressor if it to noisy. No problem. Russ
\

Jul 20, 2009 | Ruud Central System Air Conditioner

1 Answer

Fan comes on but unit does not heat or cool the air


You,ll need to open the furnace and observe the led lights on the comtrol board the is a chart attaced to cover. If it is in lock out mode the fan runs. To reset turn off at tstat.the turn the power on at the furnace, set tsat up, observe furnace. First you should hear a small fan then the glow of the ignitor then the opening of the gas valve and flames 10-30 seconds then the big fan.

Mar 27, 2009 | Ruud Central System Air Conditioner

1 Answer

RUUD HEAT PUMP COMPRESSOR FAILURES UPKA-061-JAZ


Newer High efficiency A/C's are not compatible with the older systems for many reasons. They use a different refrigerant, have a different oil in the system for lubrication and they operate at higher pressures than the older systems using refrigerant 22 which is being phased out. It is standard procedure to replace the entire system when upgrading.

Mar 31, 2008 | Ruud Central System Air Conditioner

1 Answer

Ruud heat pump outside unit trips circuit breaker


Check your wiring between the contactor and compressor for a short to ground, or check the compressor windings for short to ground.
With the Tstat off, the contactor should be open so the only way for the compressor to be trying to do anything is if the 110 volts from the unbroken side are traveling through the compressor to ground. Since 110v is not enough to run it, the overload is kicking it out, cooling off, and repeating the cycle. When you kick on the Tstat, the contactor is supplying voltage directly to ground without going through the resistence of the compressor windings and kicking the breaker.
Post back and let me know what you find.

Nov 20, 2007 | Ruud Central System Air Conditioner

Not finding what you are looking for?
Ruud UAKA042 Air Conditioner Logo

201 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ruud Air Conditioners Experts

Lawrence Oravetz

Level 3 Expert

7686 Answers

Stephen

Level 2 Expert

188 Answers

MightyMikeJr

Level 3 Expert

347 Answers

Are you a Ruud Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...