Question about Maytag 24 in. MDB9750AW Dishwasher

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Arms not spinning---dishes not clean ---Maytag Quiet Series 300

Hello,

I suspect the impeller may not be moving enough water to properly rotate the spinner arms.

Diagnostic:

I first checked the inlet solenoid to insure hot water was coming in. I added more water by hand in case it was shutting off too soon. I then set each arm to a known positon. Bowls were placed on the top rack to catch water from the top spinner. I closed the door, then opened the door during wash or rinse. The arms would only sometimes be found rotated, and the bowls had little or no water in them.

I removed the bottom spinner assembly to check the impeller, and it is spinning during either cycle. I also ran the units self test, which indicated no problem (of course!). Do I have a bad motor or impeller linkage? Or???

Thanks.

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  • 423 Answers

SOURCE: Wash Arms not spinning --Dishes not clean

Without the model number of your Maytag number, I can not determine if when you order a wash pump motor you also get the impeller.
Sounds like you are on the right path to getting your dishwasher to wash dishes again.
Oh, while you have the dishwasher open, check that the heating element has not failed using a Multimeter.

Good Luck!

Posted on Apr 10, 2009

  • 2 Answers

SOURCE: my maytag mdb8600aws jet clean 2 only cleans dishes in bottom

The seals that the racks "plug" into need replaced. Ours had the same issue and replaced the seals and it works fine now.

Posted on Dec 21, 2009

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On the LG LDF xxxx dishwasher family, the Vario feature uses a motor/check valve to switch between "full power" cleaning from _either_ the lower or the upper spray arms, never at the same time. So, not seeing the upper arm spin during the lower arm spinning is standard operating procedure.

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Hi All,


I have had a Maytag Quite Series 300 for some years now and have done basttle with it on may occasions. I now consider myself somewhat of a veteran, although by no means a repair expert!


Grinding Noise: From either a clogged/blocked impeller or not enough water getting to the impeller.
For a clogged impeller, it is fairly easy to disassemble the washer to get at the impeller to remove any debris or blockages.
For not enough water it can be a number of things. First of all, you will notice that the noise lessens if you add a jug or two of extra water. This is because if the water level is too low, the pump impeller will get some air mixed with the water & this is LOUD! Now for the causes:
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Note that in VERY hard water areas (like mine – TDS of 850 hardness or 49 Grains), the plastic fins on the cover of the impeller get very choked up with water salts and this can impede flow, leading to a low-water symptom, when in fact, there is plenty of water.


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Poor Water Flow – See above, all the above items will negatively impact dish cleaning.
Poor Q uality Detergent – After trying them all – Yes, all – Do not use cheap detergent. Buy the brand names: Cascade or Electrasol work well. I have found that by far, the little packs work the best. We found that the liquid works second best and the dry stuff really isn't up to the task at all, no matter which brand.
Spray Wands Catching – We found that our lower spray wand was catching on the bottom of lower dish tray, so I very slightly bent down the legs that the wheels mount to in order to lift the dish tray/basket a little and give the wand a little more room. This worked well.
Spray Wand Nut Too Tight – The factory seems to send the dishwasher out with the nut on the bottom spray wand tightened a little too far. Loosening this a little bit lets the bottom wand rotate much more easily.
Top Spray Wand Not Meeting Receptacle – The top spray wand is attached to a pipe that mates with a port (well, one of two ports, depending on if you have the top rack in the “Upper or “Lower” position). The pipe seems to have a tendency of missing the port. A well placed elastic band will help here. Note that on our dishwasher, by the time the first elastic band wore out, the pipe had been permanently moved to the correct position by the gentle pressure.
Tines/Dish Holders On Top Rack Falling Over – The tines (metal spikes) that hold dishes on the top rack fold down by design. Issue here is that they do it sometimes during the wash, causing the dishes to fall over and block the spray. A few well placed rubber bands help here as well.
Water Salt Buildup – If you live in a very hard water area, you can still get clean dishes from yor dishwasher. We do and we have VERY hard water. Buy a gallon of vinegar once a month. Pour this into a clean dishwasher. Turn it on so that it runs for 2 minutes to circulate the vinegar. Open the door & let stand over night. Close door & finish cycle. This will cut down significantly on the hard water salt buildup in the washer.
It's A Maytag – Sorry folks, it's true. I have learned (after purchasing the dishwasher) that Maytag has run into financial difficulty in recent years and has reduced build quality to save money. If you got suckered into buying one of these, you will very likely never buy one again. My opinion is “Do not by Maytag.”


Hope this helps someone!


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try using less soap and make sure the dishwasher is filling with enough water.

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1.does motor run? no. replace motor. 2.open door and leave the bottom rack inside dw.spin the spray arm underneath the bottom rack by hand. it should spin freely without binding. if it doesnt spin freely take out the bottom rack and try again. if it does spin freely then your bottom rack is laying on your sprayarm preventing it from rotating. 3.you could also not be getting enough water into your dw.

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