Tip & How-To about Refrigerators

My refrigerator makes a lond noise when it shuts off.

The noise that you are hearing is in the compressor. The motor has rubber mounts that hold the motor inside the compressor. One of these mounts are broke and what you are hearing is the motor hitting against the inside of the compressor. If the unit is cooling just leave it alone if it bothers you change the compressor. please rate my tip.

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makes a clanging noise when it stops running


it has to be the compressor and has come loose on its rubber mounts and as the motor stops the internals of the compressor strike the side of the compressor body and produce this noise,tighten the rubber mounts on that compressor and it should be fine

Mar 30, 2011 | Whirlpool 21.0 cu. ft. Top Freezer...

1 Answer

my 10yr old model#690 freezer is having trouble maintaining temp and when the compressor shuts off it makes a loud clunk noise. I have check to see that fan is running and have turned unit off for about 1/2 hr then turned back on but problem presist.


The noise that you are hearing is in the compressor. The motor has rubber mounts that hold the motor inside the compressor. One of these mounts are broke and what you are hearing is the motor hitting against the inside of the compressor. Have you tried cleaning the coils? let me know.

Mar 06, 2011 | Sub-Zero 690 Side by Side Refrigerator

1 Answer

on a 1991 olds ciero a non engine external knocking noise. could this be the air conditioner compressor?


A failing AC compressor clutch will make noise more like a rattle but it will become hot enough when it is failing that the rubber grommets around the clutch plate will begin to "stink" as they begin to melt and fall out. It will smell like burnt rubber smoke.

If you remove the drive belt you can try to see if there is play in the pulley for the AC compressor but you won't be able to "engage" the clutch to test it (uses electrical switching). If you can spin the pulley and it makes noise, suspect a failing compressor clutch.

While you have the drive belt off spin the water pump pulley and you should only hear a gurgling noise from water in the motor being pushed and no metal on metal noise whatsoever. If you hear a clunking noise when the motor runs you could also have a worn motor mount so you would want to check those also.

Jul 25, 2010 | 1991 Oldsmobile Cutlass Ciera

2 Answers

Refrigerator brief loud knock when compressor shuts off


The compressor you see is actually the outer shell, inside of which is a refrigerant pump (ie:compressor) which is on internal support springs. When the unit turns off, the momentum of the internal parts can sometimes knock against the outside of the compressor case. The only "fix" would be a new compressor. In the real world, the fix is to live with it. It's generally not an indication of immenent compressor failure and most likely will run many more years with no problem. Note: if you put your hand on most compressors (even new unused ones) and give them a shake, you will hear that noise.

Aug 29, 2008 | Refrigerators

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