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Kenmore Elite 665.13759k602 knocking noise when drawing H2O


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#1 Skyla

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Posted 06 November 2013 - 02:16 PM

Every time we run the dishwasher we get horrible loud knocking sounds in the water line as the dishwasher is pulling in water. When we run the kitchenicon1.png faucet the noises stop.

 

I've had two highly recommended plumbers to the house about this problem. The first one said it was my faucet which was loose and replaced the parts and for awhile it was slightly better. The second one claimed it was air trapped in the pipes, drained all the water out and fiddled around - that didn't help. He then checked all turn off valves under the sink and they were perfect. He suggested it was the dishwasher but he had no knowledge how dishwashers worked or what the problem could be.

 

I believe the dishwasher is about 7-8 years old and appears to be working properly - dishes come out clean within an appropriate time frame. The machine interior is clean - no build up of debris or clogged lines. Water empties appropriately and the machine makes a little noise in operation - you can hear the water swishing around and the pop of the detergent dispenser.

 

My hot water heater is also about 7-8 years old. We have plenty of hot water for showers so I'm not sure if that is the problem? No knocking when taking showers or flushing toilets.

 

I need to fix this problem - we can'icon1.pngt keep running to the kitchen to run the tap when we run the dishwasher. I don't want to pay another plumber who can't fix or at least diagnose problem.

 

I don't want to pay for a dishwasher repair person to come unless it is the dishwasher. And if it is the dishwasher - is it a part that can be repaired or would I need to replace it? Every time I call the appliance repair person (Fridge/stove) they can't fix it and I have to buy a new one - these appliances are designed now to break down and not be repairable because they stop making parts - but I'm sure you guys here know all about that frustrating part of the job.

 

Thank you



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#2 RegUS_PatOff

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Posted 06 November 2013 - 04:00 PM

... I've had two highly recommended plumbers to the house about this problem.

  :rolleyes:

may be "water hammer"
http://appliantology...asher/?p=194625


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#3 Skyla

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Posted 06 November 2013 - 05:14 PM

  :rolleyes:

may be "water hammer"
http://appliantology...asher/?p=194625

thank you for your reply and I went to that other link you posted. They mentioned an inlet valve snapping shut on the dishwasher so I'm wondering if this valve on my dishwasher is broken and maybe it needs to be replaced? And do they make this part still?

 

I will also see about this water hammer - I presume a plumber would install it? And that is probably why the second plumber was looking for air trapped - but I regret neither plumber suggested adding this water hammer device.



#4 RegUS_PatOff

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Posted 06 November 2013 - 05:22 PM

...  probably why the second plumber was looking for air trapped

trapped air would actually prevent "water hammer"..

that's the "working device" used in some "water hammer arresters"

 

http://www.repaircli...R=154&N=1481085

Water-Inlet-Valve-W10158389-01085182.jpg
 


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#5 Skyla

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Posted 07 November 2013 - 06:17 PM

Thanks so much. I'm going to call a new plumber and ask them to install a water hammer. I'm very appreciative of your help.






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