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A/c unit has burned 2 capacitors within 1 month. the fan motor is running, but the compressor does not turn on. the system has a hard start kit installed. a/c tech recommends installing new unit for around $1900. it is a york 2-ton about 4 years old.

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  • fry6920 Jul 01, 2008

    what causes this problem, and what is my best solution?

  • fry6920 Jul 01, 2008

    a/c unit has burned 2 capacitors within 1 month. the fan motor is running, but the compressor does not turn on. the system has a hard start kit installed. a/c tech recommends installing new unit for around $1900. it is a york 2-ton about 4 years old.

    what causes this problem, and what is my best solution?

  • fry6920 Jul 01, 2008

    if the power supply is fine then what is the best solution, just replace the capacitor and hope that it does not burn out, or replace the unit?
    i'm still not sure what would cause 2 capacitors to give out?

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It could be that the capacitors themselves were of low quality / wrong specifications, or there is a power overload somewhere in the system that is causing the capacitors to go kaput.

If replacing the capacitor helps it run a bit longer, then go ahead and do that, since that would be the cheaper option. But I do recommend getting the unit checked throughly for any fauts in the mechanics or circuitry that could be causing this to happen frequently..

Posted on Jul 01, 2008

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I'm sure that your serviceman told you that this is an indicator that the compressor is going out. When the compressor starts to go, it labors to get that initial start, pulling more juice, in turn blowing a fuse or burning out the capacitor faster. At this point just enough to burn the capacitor, but not enough to blow a fuse. Eventually you'll start blowing fuses. In deciding whether to replace it, consider the costs of a newly installed compressor versus the cost of a new unit. Shop around, and don't be afraid to play one against the other. You'll be amazed how much their prices will come down.

Posted on Jul 01, 2008

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Capacitors burns out due to some overheating in the component ...

Posted on Jul 01, 2008

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Actually run and start capacitors do go bad. They are only good for so many starts and stops of the unit. There is no industry standard for how long they will last. If you replace the capacitor and the unit works you are OK.

I would also like to mention thgat some capacitors are better made than others. mant times manufactures will use the cheapest (cost effective brand) for there units when new to save cost.

Hope it helps.......

Posted on Jul 01, 2008

  • Mark Gil
    Mark Gil Jul 01, 2008

    Yes you really need to replace the capacitor...

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Check whether your compressor is getting enough power supply .......because there may be a power problem existing in your ac since it is 4yrs old

Posted on Jul 01, 2008

  • gopinath pasupathy Jul 02, 2008

    try to replace the unit itself

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Sounds like they did all that could be done. As long as they installed the right capacitor I will agree with this diagnosis to install a new unit. I don't know what you mean by "unit". 1900.00 seems a little low for a condenser and a little high for a compressor. But that is just me.

Posted on Jul 01, 2008

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