Having problems with your Dishwashers ?

Hello, Im trying to diagnose poor cleaning of glasses in the top rack of my Fridigaire FDB751SCB0. everything seems to work fine but while testing I noticed the upper arm isn't spinning. the lower arm is. i believe the pump is working as water is spayed everywhere inside but no matter which position I leave the upper arm in, I find it in the same place when I open the door. what could cause the upper arm to not get water preventing it from spining?


Answers :

Hello; first thing to check, which you don't mention, is which side of the glasses aren't coming clean; the outside, which would be caused by the TOP spray not working properly, or the INSIDE, which would be caused by the spray BELOW the top rack not working. The most common problem causing a spray arm not to turn, and/or poor cleaning, is debris blocking some or all of the spray holes in the arm. Best and easiest way to check them is to remove them; they usually are easily removed with a large wing nut or screw in the center. (Don't drop the screw, if you do it will ALWAYS find it's way to the hardest spot to retrieve it from in the whole dishwasher!)
\015\012Once you have the spray arm(s) out (this might be a good time to clean them all) you may notice pieces of debris partially protruding from the spray holes. DON'T pull them out; use something to push them back inside the spray arm. Pulling them out can enlarge and mis-shape the spray holes.
\015\012Dislodge any pieces inside the arm by firmly rapping it against a firm but padded object, and shake the debris out over the sink, catching it in a paper towel so it won't go down the drain. Be careful, as broken glass is often inside the spray arms, picked off the bottom of the tub and fed through the pump to the sprays.
\015\012Once you don't get any rattling inside after several "raps" on the padded object, the arm should be clean.
\015\012Cleaning these spray arms periodically is a good idea even before you have trouble.
\015\012Hope this helps, and good luck!
\015\012Alec
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