Frigidaire gld2250rdc1 (same as Electrolux) not getting water on top rack. I removed arm alltogether, and even in TOP RACK washing mode - only bottom rack spinning, no water comes out of top rack's connection. How is water routed top vs bottom? Is there a valve or does motor spin different directions? where to look??
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There is a circulating pump that takes water from the bottom and pushes it to the top spinner. Most likely that pump is clogged or needs to be replaced. Replacement is a somewhat involved repair that requires removal of the lower pump assembly. It can be done DIY if you are comfortable with disconnecting a/c power to the unit, removing the unit and making tight hose re-connections. Before you do that - maybe check the intake for clogs that may be slowing the water flow. Have you routinely cleaned the bottom intake? (Most likely not ...) You can start by cleaning the bottom intake by usually removing the lower spin arm, then take out the catch ring and check for obstructions. The spin arm rests on a cap that can be removed to then remove the screen assembly. Be careful not to force the part in the wrong direction - with these you usually turn the spin cap right to unlock from the base. Then you can access the intake area - be careful as there are probably blades inside the intake that work as the disposal grinder. Remove the soap scum and buildup on all removal parts with a simple sponge and baking soda scrub. Do not attempt to run the machine with parts removed.
Check for clogged holes in the dishwasher arm. You might be able to use a strightened out paper-clip to unclog the holes, if they're not too bad. The other thing that would stop the wash arm from turning could be a build-up of calcium in the shaft or bearing of the wash arm. Remove the wash arm and clean it out manually. Then you will probably want to get and use a dishwasher cleaner, like Dishwasher Magic to clean out calcium you can't see or get to (easily).
It is likely that sufficient water is not coming from the top arm. These dishwashers oscillate the water flow between top and bottoms sprays alternatively. This ensures water is pumped with adequate force. It is possible this mechanism is not working correctly. The device called check ball item 58 in this diagram actually does this function. The ball might be out of shape or not sitting properly causing incorrect wash water movement.
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.
I had the same problem and fixed it by disassembling the lower spray arm and return filter, and cleaning all the junk out.
Most dishwashers have 'risers' that bring the water up to the top
sprayer or arm located under the top rack. If the recirculating pump
is plugged even a little there won't be enough volume or pressure to
get the water up there.
Test this by putting a dry muffin pan in the top rack, flat, and
running the dishwasher for a bit. If there is no water on the top (or
the bottom) either the top sprayer or the sprayer arm underneath the
top rack is not getting enough volume.
To fix this you need to clean out the screen and filter, where the
water returns to be recirculated. If you don't have any confidence to
remove the parts and clean it out yourself, get an appliance repair
person to do the job.
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.
the motor stops and runs in the opposite direction to pump water up to the top rack. you first need to listen for the motor to stop and start. if you hear that open the door and try to tell if water was coming out of the top spray arm.