Question about Frigidaire 24 in. FDBB944C Built-in Dishwasher
My Frigidaire FDBB944C50 dishwasher seems to have a problem whereby the top arm does not spin /clean the dishes up there. There's water coming out the top going down to the arm but it apparently isn't enough volume and/or pressure to do much. The design is that instead of a pipe coupling to get the water in there, a fire-hose of water sprays down from the top middle into a port on the top of the top-rack arm, if that is of any help. I now realize that this design seems kinda lame anyway but it used to work ok until recently.
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Posted on Jan 02, 2017
You could try running it with the upper arm removed, just so you could be sure that the pressure is not getting to that point - unless you are absolutely sure the upper arm holes/channels are all clear then descale it overnight with some vinegar - just might clear something. if there is obviously only a little flow of water then perhaps you could try getting vinegar into the supply pipe using a basting bulb/syringe or similar - again leave overnight and you may get lucky. The next thing would be to take the machine apart so you could follow this hose through to the pump - undo it from the pump and blow through it or see if you can get a piece of wire in it from the pump end. try vinegar again. check the pump outlet for blockage. Hope this helps :)
Posted on Mar 14, 2007
SOURCE: I have a Frigidaire Ultra
I may have the answer. I had what sounded to be the same problem. I found the dishes were dirty after they were cleaned, but I found there may have been a big pot lid blocking the upper arm. I decided to run the machine again, and after a bit opened the dishwasher after to make sure it was not a problem with the arm. Sure enough, the arm wasn't moving. However, I found out on the Frigidaire webpage that some models have an alternating spray cycle, where only one arm spins at any given time. After reading this I checked again, and it had moved by that time. I checked a few times more to confirm this. So it ended up it was an arm blockage after all. Hope this helped...good luck.
Posted on Dec 14, 2008
The top rack is not cleaning because of low water pressure from the wash motor to the upper spray arm.
Assuming the top spray arms are clear of debris, remove the lower spray arm to access the wash motor. Remove the 4 torx screws and the filter (accumulator assembly). Remove the torx screw and the inlet protector that covers the chopper assembly. Make sure the chopper is not broken (broken chopper will fill with debris and block water flow). While holding the chopper blade, reach inside the "D" shaped opening on top of the motor and spin the wheel/motor by hand in each direction to make sure either the chopper gear or the motor gear that drives the chopper is not broken. Replace the chopper if necessary . If the motor gear is broken, replace the sump and motor assembly . Remove any debris from the sump area in the process.
You don't have to shut the power off to the dishwasher because the door will be open, but if you feel more comfortable, do so.
Posted on Mar 18, 2009
SOURCE: TOP RACK NOT CLEANING DISHES
Possible that the motor impeller has good particles in it, causing poor water pressure, which would be most evident on the top rack. You would have to remove the spray arm, then the filter, then the torx screws to get at impeller....unfortunately, that model of dishwasher isn't the greatest in the first place for washing, since it only has the one spray arm.
Posted on Apr 07, 2010
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