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KitchenAid Side by Side Model KSRI25FNWH00 - Knocking noise

This fridge is 4 years old. About two weeks ago it started making a loud knocking noise that shakes the unit slightly when the compressor kicks on. The knocking continues for around 15 seconds then fades away as the compressor continues running.

Once the knocking sound stops, the unit runs normally. The compressor cycle time also seems normal and the fridge is staying at the proper temp. The fridge is level front to back and side to side.

Thanks for any assistance.

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  • cbreview Jan 14, 2009

    We have a KitchenAid Refrigerator Model KSRP25FNSS00 which is about 4 hears old as well, started making the noise about a year ago, but lately seems to do it even more often. The noise and shaking is identical to described by the prior person. I have read online about the compressor causing the problem. Would appreciate information if it's something that needs repair... that is, will eventually impair the refrigerator's function.

  • 88418 Mar 22, 2009

    Model # KSRP25FNSS is approximately 3 or 4 years old and begins to knock periodically when the compressor seems to be running. The unit appears to be cooling fine and the knock last 15 to 20 seconds.

  • cbreview May 11, 2010

    I am following up on our post from earlier in the year. I don't know if the other two people who posted their problems have had any resolution (?).
    When the problem started over a year ago we had it checked by a service person who didn't know the source of the noise. Since then the unit continued to knock... which got worse over time, but it otherwise worked fine. In June my husband noticed the refrig. temperature to be in the 50's so we thought the unit was failing and we transferred all food to our extra (empty) garage refrig. However, we checked the temp later and it was fine (and later learned that it was probably in a "defrost" cycle when we saw the increased temp). We again had the refrig. checked at by a service person who found no problems. In fact after this the unit made NO NOISE for over 2 months. Then it started up again. I figured somehow our changing the inside temp while emptying the refrig. had temporarily fixed the issue. So I turned the freezer temp to cooler for several days (no change in noise), then turned it back to less cool #2, and the noise stopped after several days! We are now several weeks without noise... which is a whole lot more enjoyable. Hope this helps someone else with this frustrating problem.

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5 Suggested Answers

  • 2692 Answers

SOURCE: Knocking/banging sound on compressor start up

Check the compressor mounts. They are usually springs mounted with rubber. If they are two loose the compessor wil hit some other metal part when starting up. Shakle it and see what it is hitting. Ajust accordingly. 

Posted on Dec 27, 2008

mumma_1
  • 903 Answers

SOURCE: refrigerator knocking noise

the motor could be on the way out. Put your hand (carefully) on the motor (back of the refridgerator), if it is too hot to touch then the motor is burning out and will need to be replaced.

Posted on Nov 15, 2008

  • 50 Answers

SOURCE: Knocking noise when compressor chuts off

this is a problem that has been going on for close to 35 years. back in the day some genius decided to redisgn the compressers made by tecumsah. they made a rotary compressor in other words the compressor inside the housing turns 360 degrees rather than being pumped from a piston that went up and down.this rotary compresser spun around very fast and when it shut off the three springs that held the compresser would sort of bend a little. as time went on this weakening of the springs would cause the compresser to hit the housing, thus creating a knock or ping or whatever else you want to call it. so customers would call up factory service ans say their refrigerator was making noise. so a service tech like me would go out hear the sound and order a new compresser. after a while the replacement compressor may or may not make noise. after a few years tecumsah said that they would no longer credit the service companies for noisy compressor problems and that the noise was the nature of the beast. so depending on variables such as who you talk to when you request service and the tech who shows up at your house you will either get a new compresser or not. i hope that explains your problem to you it's hard to write all this down rather than standing in your kitchen and telling you in 45 seconds good luck. you can take this all the way to the president of whirlpool if you get no satisfaction

Posted on Jan 29, 2009

  • 1 Answer

SOURCE: Knocking/banging sound on compressor start up

I have the same problem with my new Frigidaire. I'm positive on this problem, cause I'm only diagnosing by listening. I really don't think it is a mechanical failure of the compressor, cause it would make continuous noise or random noise, not just start-up. I think there may be something with the new units due to the refrigerant change. Keep in mind; the old freon used to be R12 or R22, the new is typically R134, and likely to use txv type expansion valves as opposed to fixed metering. I think there may be something to do with the performance of that valve. Whether or not it bleeds back on shutdown and then has to fully recirculate. Keep in mind, the R134 has a different saturation pressure/temp as well. Maybe a check valve or even a sump heater may help the problem. Like I stated earlier, this is speculation, since I have not truly diagnosed the problem yet.

Posted on May 07, 2008

  • 400 Answers

SOURCE: F&P E442B - Knocking/cracking noise

You need to make a vacuum breaker, break a lollipop stick in half and attach to the gasket at the bottom of the fridge door, that should sort it.

Posted on Mar 10, 2009

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