After several years of completely trouble free use the dishwasher has started making a loud and what sounds like a serious noise right towards the end of the drain cycle (approximately 2 minutes left on drain).
The noise can best be described as something hard rubbing against a large gearwheel turning at speed. Since there are also splashing noises as well this is the best I can do right now. The noise is consistent with each cycle.
I have looked inside the dishwasher but I can't see anything loose or broken anywhere. Nor can I see any bones or other hard food that might be the cause. The dishes are still being cleaned but I am concerned that something will break if this noise persists. (For all I know something is already broken.)
I have some skill as a handyman and I have in the past replaced the entire motor on a GE dishwasher. My problem is that with this machine I don't really know where to start troubleshooting so any hints or tips will be greatly appreciated.
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Re: Noise at end of drain cycle.
There aren't really all that many energetically moving parts inside a dishwasher - fewer still that are active during the drain cycle.
Follow the drain hose into the machine, and you should come upon the drain pump. Have a look inside that, and in the hose that runs between it and the sump it drains. My best guess is that some piece of buoyant debris is sitting in that line, and, as the water level drops, is lowered into the pump impellor.
Usual warnings about disconnecting power before putting your hands inside the machine apply - and be aware that you're likely to find a bit of dirty water sitting around in the pump.
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In my experience, in this case it is likely that your dishwasher is not draining at any time throughout the wash or rinse cycles. The overflow float is preventing your machine from overflowing.
Here are a few things to check:
If this is a new install, or the disposal has just been replaced, make sure the plug in the disposal has been removed. The nipple where the drain line from your dishwasher attaches has a plug on the inner wall of the grind chamber from the factory.
Listen to the sound of the drain motor by starting a cycle and then canceling after a few seconds. Make sure the drain pump is actually running and not just making a loud humming noise as if it is seized, or something is binding it.
Finally, check your drain line from your dishwasher to your disposal (most common drain connection), or where ever your drain line connects. Slight kinks and sharp bends have a tendancy to collect debris and create a plug-up. If this is the case, simply take the drain line loose from the drain pump and from the disposal and take it an outside water faucet. Place the disposal end against the faucet and slowly turn on the water. It will usually blow the plug right out.
There is a recall on the control board of many of these models, butyour problem is likely not related. It sounds like a plugged drain system or a possible bad drain pump. That's why you are hearing the pump running constantly. I have written a guide to help. It is here. Thanks!
the smell is your clutch and the lack of draining is a clogged washer drain protector. see these at www.repairclinic.com drain protector is part 541811 and clutch is 2670. go there enter model number and scroll down to the red 100 click it and look for these part numbers.
your model is pretty new. just so you know your warrenty is 1 year parts and labor. 2 years on parts. it should not cost that much money.
there are two components that start before the circulation pump.(wash noise you hear)
first sounds you hear will be the drain pump. usually rattling noises if something is in it but it can make a hum noise if something is jamming the drain propeller up. which is accessible with a T20 torx driver. take the filters out and the mesh filter. and unscrew the screw in the base towards the left. pull out whatever is lodged.
the other humming sound can come from the next component that activates is the watervalve. make sure you dont have a kinked water intake line. otherwise its a bad valve. i have had to change a few of those water valves out already but not for a hum noise on your model. you have a new style water valve. when brands make new parts we get problems fast sometimes..
It could be the impeller on the motor. The impeller fits over the shaft of the motor and might have split/broken up. That funny noise is probably the shaft spinning inside the damage impeller. Fortunately the impeler is fairly inexpensive and easy to replace. I believe there are one or two parts/covers to remove that are held in by a roughly half dozen torx screws.