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Buzzing sound in fridge

Buzzing sound in fridge

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Thread: Buzzing sound in fridge

  1. #1
    Join Date
    May 2013
    Posts
    1,475

    Default Buzzing sound in fridge

    Model - 363.9520880

    Appears to be a GE built Kenmore dblwide freezer/refrigerator.

    The complaint was a buzzing sound from the compressor. Plugged it up, and it did sound like a buzzing sound coming from the compressor.
    I got it home and unloading it, I let it hit pretty hard coming off my trailer. Plugged it up outside still had the buzz but not quite as bad. I would unplug it and the buzz would continue just a little and sound liker it was coming from just above the compressor. Made me wonder if the sound was traveling and not coming from the compressor after all. It also had an almost rotary sound, kind of pulsating til it stopped.

    I cleaned under it, the condenser fan, coils, etc. I called myself tightening the evaporator fan mounting bracket thinking it might be loose and causing the buzzing sound.

    I thought let it run a few and see if the sound goes away. It did. Compressor runs cool and quiet.
    I set pocket thermometers in each side. It was a little early, but one ff would show 20, freezer would show 0. I left a bottle of water in the ff section today before going out of town. Came back, it still showed 20, but the water was not frozen. Kind of confirms what I have been thinking for a while that my thermometers were faulty. I did switch the thermometers from one side to the other. When I went back to check in a little while, the ff has risen a couple of degrees, but the compressor had also come back on. I did not think to check the freezer at that time.

    I think maybe the ff would read the same when the compressor kicks off if I had not adjusted the settings just a little.

    Seems odd the if both thermometers read the same in each compartment, until I realize I calibrated one with the other. Heheh, I may have used the wrong to set them by.

    My thoughts are maybe the hard bump unloading jarred a compressor spring and corrected something. Maybe the cleaning made a difference as in making a fan more in balance, or I did tighten the evaporator fan motor bracket.

    I should add I also removed the icemaker.

    Who knows the plastic control cover might have been vibrating as it just kinda lies on a couple horizontal posts.

    Enough rambling. I do have a question. When you unplug, the compressor should stop immediately, right? No coasting to a stop, right? Whereas a fan might coast a little, right?

  2. #2
    Join Date
    Feb 2012
    Location
    Canada
    Posts
    2,348

    Default

    When you unplug, the compressor should stop immediately, right?
    Yes.

    No coasting to a stop, right?
    Nope.

    Whereas a fan might coast a little, right?
    Yes.

    New thermometers time!

    Pocket thermometer, -40? to 160? F
    Buzzing sound in fridge-742-014-jpg

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

  3. #3
    Join Date
    May 2013
    Posts
    1,475

    Default

    I think the compressor is out of the running for being the culprit. I may put the icemaker back in tomorrow just to see if it had anything to do with the odd sound.

  4. #4
    Join Date
    Feb 2012
    Location
    Canada
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    2,348

    Default

    If the fill valve is not hooked up to a water line and the icemaker is turned on, the fill valve will buzzzzzz for 6-9 seconds everytime the icemaker calls for water.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

  5. #5
    Join Date
    May 2013
    Posts
    1,475

    Default

    Interesting. I might or might not have differentiated the inlet valve sound and some other sound.

    I noticed a few minutes ago a very slight buzz or rattle somewhere in the back of the fridge. I also noticed the drain tube has a metal cover over it. This will be the next thing I check out for anything that might be loose.

  6. #6
    Join Date
    May 2013
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    New thermometers time!
    Brought both in and set them on my digital house thermostat. Then set them to match it.
    I also put a bottle of water with a hole in the top in the ff section with one of the thermometers in it. I put the other one in the freezer. Last time I checked both were pretty much on the money. Well within range.

    Not sure that faint rattle is something to be too concerned about, but I will try to find the source.

  7. #7
    Join Date
    Feb 2012
    Location
    Canada
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    Not sure that faint rattle is something to be too concerned about, but I will try to find the source.
    Could be an age thing.....I have some faint rattles now that I didn't have 20 years ago

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

  8. #8
    Join Date
    May 2013
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    You and me both!

    I thought this thing was running too much, especially with the dial set so low. I had it set a little past 2, and it was still running at near 40 degrees and a little below. It did not want to cut off until I turned the dial to off.

    I removed the control. I will put it in the fridge in the house to attempt to see at what temp it might open. Did the same in the Fall with very little luck.

  9. #9
    Join Date
    Feb 2012
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    Canada
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    Just has 1 dial or two?

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

  10. #10
    Join Date
    May 2013
    Posts
    1,475

    Default

    Has the dial for the thermostat/temp control numbered from 1 to 9. It also has the wheel for adjusting the air flow from the freezer section.

    I put the control in my fridge that hovers around 33-40 or close to it. This according to the new fridge thermometer I placed in it. The control was on like 2, and still did not want to open.

    Now at one point while the control was still in the fridge, it had opened at a higher number I think. I do not know how long it had ran at that time as I was in and out of the shop. Right before I removed it to try and test it, it seemed the fridge was running constantly while I was out there working.

    Explain something to me. If the temp is say 38 degrees, does it matter if the entrance point of the cold air is a narrow opening or a wide opening? I am thinking of the air flap on the freezer control. I mean if the temp control/thermostat has a reading of 1 to 9, and it is set on like 2.5, shouldn't it open before the temp got to 40 or below? Normally, what? 5 is recommended for normal usage?

    In my mind, it shouldn't matter if the freezer adjustment was working or not as long as it is closed off and temp got low enough to open the cold control.

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