Question about Goodman CLQ36AR49 Air Conditioner

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Heatpump A/C not working

Heatpump will not turn on when put in cool position on thermostat. Everything else seems to work, heat cycle, at least on heat cycle. Did not check auxillary heat though. I checked outside and there is 240V at contactor but no low voltage. I pushed in contactor and unit came on but would not stay on (obviosly). I have not worked on many heatpumps but worked on many condensers so I know all about them and the components. I am not real familiar with all the extra componenets in a heatpump so any help would be appreciated. Like troulbeshooting the electrical system, where is the best place to start and finish? And what type of readings will I expect and what wires usually connect to thermostat and heatpump. I know there is 4 wires going to heatpump (low Voltage) I think it was Yellow, red, orange and not sure about 4th. And the thermostat has 5-7 wires to that. Which is the basic red, yellow, white, green, blue and orange or brown and maybe a light blu wire? Also as I said the heatpump thermosat has a heat selector and auxillary and a cool ad then the fan, thats it. Please help with all troubleshooting techniques, as I will be working on heatpumps from now on at my job.
THANKS

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  • nicklynn2 May 13, 2009

    Wow, thanks for the quick response guys!

    First response back on the contactor. There was 240V on the line side between the 2 110V wires coming in. There was no low voltage on the coils, sorry for misunderstanding.

    second response, I did turn on HEAT only and it did start warming up in the duct work, but I did not have a chance to go outside and check if unit was running.

    I am not at work right now but will do the troubleshooting techniques you described tomorrow around 10-11AM and I will let you know what I find. I have internet access at work and can be on line and let you know if your available? I really want to try to get this fixed, they have been without air and its starting to warm up.

    thanks again!

  • nicklynn2 May 15, 2009

    I have an update on heat-pump. I have 24vac at thermostat for Y and W when crossed with R and blower did come on when jumped a/c and heat, but not compressor. Outside I replaced contactor on HP and it still would not come on! I have 240vac and 5 wires from thermostat, red, yellow, blue, white and orange. I am not sure what 2 wires together I should check for a/c (24vac) so I checked the red and with other lead on my V-meter I grounded to HP case and had 24vac, same with orange and white. When I manually push in contactor compressor starts as it did yesterday. Do you think it may be reversing valve, and is there a test to check it? Any help would be appreciated. If it helps the HP is a (Bryant Model#661CJ018-E) Thanks

  • Samuel Charles Spriggs May 11, 2010

    Wow, that's alot of information. This got my attention:



    "there is 240V at contactor but no low voltage. I pushed in contactor and unit came on but would not stay on (obviosly)."



    There should be 24VAC on this contactor coil if the thermostat is indicating that the system is cooling. Could this be a thermostat problem?...

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First,Turn on the heat cycle (Not Emergency)and see if the outside unit come on,If not,and you don't have low voltage outside,Go to the inside unit and test the transformer,If you have low voltage from the transformer but not outside,It is the low voltage wires,If you don't have low voltage from the transformer,It's the transformer.If you have low voltage outside when in heat mode,but the unit won't come on,It's the contactor.Let me know if you need more help.


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Posted on May 13, 2009

  • Randy Hough
    Randy Hough May 13, 2009

    Hey,I Just thought about something,I said,check the transformer,Well you don't need to,If the T-stat is working,Then the transformer is good,So it is either a loose connection on the low voltage,broken wire,or connection at the t-stat.

  • Randy Hough
    Randy Hough May 15, 2009

    Go here and go to pages 12 and 13 For a full wiring diagram of the system and thermostat,Plus other helpful heat pump solutions.





    Please rate this a fixya.

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Sounds like you've pretty much checked everything out,except---This is a Goodman heat pump,correct?In cool cycle the reversing is energized(FYI)The 5 wires coming to the condenser are correct.The red wire is 24volts/ the yellow wire is the heat circuit/the yellow wire is the cool circuit/the blue wire is common/the orange wire is the reversing valve.Go to the defrost board on the condenser,there should be a row of male spadeclips.The t'stat wires should be connected to CYORW2.With t'stat in COOL,check voltage at the blue and yellow wire,should read 24volts(red wire will probably read also).If you read 24v and unit does not run,I would suspect the board.24v in should be 24v out.If you have other units that are operating correctly,borrow a board install it,should work.Lets check one thing at a time.Let me know. Gregg

Posted on May 28, 2009

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