Question about Goodman CLQ36AR49 Air Conditioner
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.
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
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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Posted on Jan 02, 2017
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