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Thread: Nosiy Outside Compressor; Easy to Change?

  1. #1
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    Default Nosiy Outside Compressor; Easy to Change?

    Model Number: Not Sure
    Brand: other
    Age: More than 10 years

    I have a noisy compressor that's sitting on a concrete slab adjacent to my master bath. When it's on, it's noisy as hell, and causes the bathroom to slightly vibrate. I'm thinking I can take the top off of it, get the model number of the compressor, and just order a replacement part from the same manufacturer that comes with the same standards and connections. Is that all it takes, or is there more to it?

  2. #2
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    Most compressors sit on rubber mounts but over time they get hard and brittle and start breaking apart.
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  3. #3
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    So should I just change the mounts? What about a sound blanket?

  4. #4
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    Just the mounts.
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  5. #5
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    I can do that but it's not worth changing the whole thing? I'd think it's an old model and that a new one and would be less trouble.

  6. #6
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    The compressor?? OK BigKetchup, time for school!...lol. First thing you need to do is take a few classes on refrigeration theory and how it works. Once you got that down you're going to need a few specialty tools like a set of refrigeration gauge, recovery system, set of hoses for the recovery machine, vacuum pump, swaging and flaring tools and a 30LB recovery tank. That will set you back 2-5K. If you know how to braze you can skip the next step because the next step is learn how to braze. Once you're done with school and purchasing your new tools and brazing skills, you need to go online and take the EPA refrigeration certification exam and pay the fee.

    All kidding aside, you don't want to change the compressor or open the sealed system on a machine that old if you don't need to. The compressor alone will cost more than a new machine. Sealed system repair costs will usually exceed the machines value. You probably just need to replace the rubber mounts.

    EDIT: I forgot you have central air so if the rubber mounts don't fix it, you probably will need to replace the compressor and not the entire condensing unit. But that's your call. Sometimes those bigger units need oil added. The other stuff is the same, you still can't do it.
    Last edited by rickgburton; August 23rd, 2018 at 02:14 AM. Reason: made a correction on compressor service
    OWNER RICK'S APPLIANCE REPAIR
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  7. #7
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    LOL. I thought it would be like changing the fill valve in a toilet. I'll try your recommendation for the mounts.

    But just curious: a sound blanket wouldn't be worth it?

  8. #8
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    No the last thing you want to do is insulate the compressor or block any air flow around the condensing unit.
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