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We have a Maytag Dishwasher DWU7802AAM.
The dishes are not getting cleaned well.
I ran it with the door open and it fills with water fine.
When the washing starts after filling, LOTS of water comes spraying out in an irregular pattern from the center post in the bottom of the dishwasher. It does not seem like a pattern that would clean well. Very heavy water in one main direction, like from a garden hose. Less spray in other directions.
The top and bottom propellers do not spin. I checked the holes and they are not blocked.
Any suggestions on what to look for or try next?
Thanks!
Re: Dishwasher Props not blocked, but not spinning
The whole system depends on joints.
from the bottom the water is pump through the centre pedestal to the lower spray arm, have you a joint somewhere that is allowing the pressure to dissapate rather than concentrate?
the upper spray arm has several important joints in the system, check them out.
If you have pressure ok and its not reaching the spray arms you must have a leak somewhere.
If you have no pressure then a pump full of food wrappings or sweetcorn might be the answer. Hard to tell without an examination.
hope that helpsKevin
Re: Dishwasher Props not blocked, but not spinning
There seems to be lots of pressure, but maybe the problem is with the top of the center pedestal? That is where a lot of water is sprayed out in a very heavy and uneven manner. Maybe there should not be so much watter coming out there. If there was not as much water there, then I would assume there would be more pressure in the system as a whole.
Does that make sense?
How much water should there typically be coming out of the top of the pedestal?
Thanks!
Re: Dishwasher Props not blocked, but not spinning
from a joint, practically none. The upper basket needs to locate into a docking station, under pressure these can move forward, creating a leak to the pressure system and effecting the wash result.
KevinRe: Dishwasher Props not blocked, but not spinning
kheath wrote:from a joint, practically none. The upper basket needs to locate into a docking station, under pressure these can move forward, creating a leak to the pressure system and effecting the wash result.
KevinI don’t know if there is a “joint” at the top of the pedestal? It looks to me like there is a stream of water that shoots straight up from the center of the lower propeller. This stream of water travels up the interior center of the pedestal and hits the round head of the pedestal. The round head looks like it should spin, spraying water around the interior of the dishwasher.
Is this a correct interpretation of what is supposed to happen?
As far as your description that “the upper basket needs to locate into a docking station”. I don’t really follow that. It looks like the upper rack just slides on a track. It does not lock into anything. The upper propeller that should spin over the top rack, must get its water supply from a hose in the roof of the interior of the dishwasher?Re: Dishwasher Props not blocked, but not spinning
Any chance of a photo of the interior, Shep? Water shooting straight up can’t be right – one pot in the wrong place would block the flow.
Regards,
Penguin45.Re: Dishwasher Props not blocked, but not spinning
Hey – Thanks for the reply! I have a digital camera. What’s the best way to get a photo available to see?
As far as the water shooting straight up, here is a better description. The water shoots straight up from the center of the lower propeller. When the lower shelf/rack is closed, the hollow pedestal attached to that rack lines up right above this stream of water. The water is supposed to shoot up the interior center of the pedestal and enter the rotating head which spins the water at pressure above the lower rack. Right now, I THINK the problem may be at the center of this lower propeller where the water is discharged.
It seems both to be too much volume of water to allow pressurization of the propellers, AND does not seem to direct the water at the correct angle up the center of the pedestal to cause the head to spin. The head is also very wobbly, so I don’t know if that is working correctly either. I may have multiple problems!
Thanks!
Re: Dishwasher Props not blocked, but not spinning
shepard wrote:Hey – Thanks for the reply! I have a digital camera. What’s the best way to get a photo available to see?
You can upload it to imageshack – http://imageshack.us/ then link to it using the “img” tool at the top of your reply 🙂
Dave.
Re: Dishwasher Props not blocked, but not spinning
Boy, I don’t know that I got this correct. We’ll see!
Re: Dishwasher Props not blocked, but not spinning
Well there they are!
The top picture is the pedestal with the (loose) rotating head.
The middle picture is the underside of the pedestal showing the underside of the rotating head at the top of the tube.
The bottom picture sort of shows the center of the propeller which lines up underneath the tube of the pedestal when the lower rack is closed.
Re: Dishwasher Props not blocked, but not spinning
Right. Logically, there should be some sort of diverter in that up tube from the base – your comment about a “strange pattern” of spray backs this up. Something needs to shoot water into the rotor to make it spin. Perhaps remove bottom rotor and see what’s down the hole?
Best I can do at this time of night 🙁 .
Regards,
Penguin45.
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