Question about Goodman CLQ36AR49 Air Conditioner

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Outside condensor compressor

The starter capacitor went out on my outside ac unit I had it replaced everything worked fine for about 2 weeks and the the red wire burnt off at the capacitor got that fixed and all was fine again 2 weeks after that the same thing happen but this time it was the yellow wire what could be the problem? I am leaning toward the compessor going bad any help would be appreciater it is a goodman 5 ton unit and it is only 5 years old

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Hi, and yes if this capacitor is getting hot enough to burn off wires, you are drawing to many amps at your compressor causing this. Did the old capacitor you replaced leak any oil, or was it swollen and deformed? I have seen a compressor last less then 6 months. If you had a amp probe the clamp around, you could check the running load amps, (R. L. A. ) at each leg of the compressor to see what each one was pulling. Like the R terminal, 11.8, C, 9.7, and the S or start, 8.9 amps and compare it to the data plate on the outdoor unit which tells you what it will be, like 21.7R.L.A., just a guess on yours. If it was much higher, you would know you have a problem. Whens the last time the outdoor coil was cleaned?? It should be cleaned every year as the head pressure will build in the system putting a load on the compressor and will cause these kinds of problems. Before I would condem the compressor, kill the power and take your water hose to the coil and give it a good washing. If dirty, it could bring the internal head pressures down by 50 p.s.i.! Do this to see if it takes care of the problem.If you had a service tech out to replace the cap, he should have put his manifold gauges on it and cleaned this coil for you. Be careful not to bend the aluminum fins down with to much pressure. If this is a dual run cap, it would be for the fan and compressor. It will have 3- sets of 3 to 4 spades coming out the top, 3 in a row marked Fan, C for common, and Herm for compressor. With a dirty coil, it will also cause this fan to run to hot and take out the capacitor. Do this for me and I believe this will solve the problem if the fan and compressor seem to be running quite and cooling good. Keep me posted on this. My gut tells me its a dirty coil causing this problem. Please be kind when rating me, that would be nice of you. I will be here if you need me.
Sincerely, and have a great 4th,
A/C & Heating Contractor

Posted on Jul 04, 2010

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My opinion is simple! The wires went bad on the first capacitor and were not replaced. Now after a fresh capacitor was installed the wires just could not hold up any longer! Thats is why the red wire did not burn off the second time and it was a different wire....the yellow! The next wire that is going to go bad is the Brown wire if it was a three wire capacitor. Hope this helps explain the problem! Always replace the wires after a cap is blown!

Posted on Aug 29, 2010

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It sounds like the wires are not connected tightly, if you put the capacitor on yourself make sure you take a pair of pliers and crimp the male connector more snug. A burnt wire does not mean bad compressor,it
could mean poor wiring connections

Posted on Jul 04, 2010

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  • Frank Bryant Wetzel Jul 04, 2010

    80% of all AC problems are electrical, the unit not being on the 1st

    time is no reason to put a set of guages on and cause more problems. I have only seen a few capacitors blow up and others that looked perfectly fine and not work.

    After the capacitor was installed the 1st time and after the tech got

    the unit operating, he could probably tell by listening to the compressor, feeling the suction line, the discharge air out of the

    condensor if the unit was performing. If a condensor is that dirty

    he should have seen it and washed it.

    You can check the compressor out, but I doubt you will replace the compressor, you will probably replace the entire unit. I would not expect a homeowner to be able to do what you described as

    evident they called a service tech. Asking them to do what you

    just described could get them killed.

    Run it til it drops and dont let a contractor force you to buy one

    when it is not needed,just start getting prepared if you feel you

    are having problems with the compressor

  • Robert Horton
    Robert Horton Sep 10, 2010

    Looking back on what you said about not putting gauges on a unit causing more problems is not at all true. First thing I do, is look, listen, and feel. I can 99% of the time tell you what is wrong with your unit by just hearing out the complaint. The coil should be washed while you are on site anyway. You can't tell if the unit has the proper charge just by feeling the suction line or if its sweating?? If you are a real service tech, and not a wanna be, you should check the system out completely, amp. check on the compressor, condenser motor, evap. motor. Check the super heat, only takes a few minutes. Wash the outdoor coil. Look at all of the electrical connections. If I were to get a call back when working for the last company I worked at, and it turned out to be a burned connection on the compressor terminal causing the compressor to over amp, my service manager would have my a*$#%^@# in a sling!! Do it right, if you know what you are doing. Prevent call backs. You say I could get the customer killed by checking the amps? Yes, if he didn't fully understand, and crimping down connections on a run capacitor can kill a man if the capacitor hasn't been discharged either!! So, remember this if you can.

  • Frank Bryant Wetzel Sep 10, 2010

    Apparently you do not put your gauges on first, the 1st thing you do is look,listen and feel. 99%
    of the time the complaint is usually its not cooling so now thats not hard to figure out. You also
    said you can tell if the unit has the proper charge by just feeling the suction line, so far another
    reason you have not put gauges on yet.

    If you clean the condensor 1st, your amp draw would be less on the compressor and condensor fan motor. So why even take the measurements unless you are predicting the
    unit will fail pretty soon.

    Are you going to tell the average homeowner your compressor has high amp draw, they will
    not even know what you are talking about. Besides a real service tech would also check
    the filter, a level thermostat if needed and additional heat sources that could be a problem.
    So and try and remember that if you can.


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