Are the top rack adjusters on the Whirlpool GU2400XTP dishwasher an owner-serviceable item? Do most Whirlpool parts stores sell the top rack adjusters for the Adjustable 2-position top rack? My dishwasher is five years old and one of the adjusters has broken. The two-position rack seems like a good idea but the plastic part doesn't look like it was built for high-temperature durability.

SOURCE: Dishwasher Making Loud High Pitched Noise.

A loud high pitch whine while running the dishwasher means that there is something caught in the chopper assembly. To get to the chopper assembly you need to take the racks out and take the pump apart from the inside of the dishwasher. The chopper assembly looks like a metal grate with holes in it. And it might not even be stuck in the grate but somewhere in the pump area due to the water being pumped out, so the best idea is to take the whole thing apart and clean everywhere. However I do not recommend doing this unless you are completely certain you will remember where the screws and gaskets go, otherwise you risk damaging your pump or house from a leak or improper installation. You have been warned.

SOURCE: dishwasher doesn't clean the top rack whwn we riun it.

sounds like the jets are cloged you can try a small wire to try and unglog the jets that or you water does not have enoph pressuer hope this helps

SOURCE: Kenmore Dishwasher Holding Water

lost your tube that supplies water to upper spin rack? look in your strainer

SOURCE: Top spray not functioning in dishwasher

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 and lower feed tube 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 (part # 8268383). If the motor gear is broken, replace the sump and motor assembly (part # 8535150). 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.
Good luck!

SOURCE: Whirlpool 24" built-in GU1200XTLBO dishwasher electrical smell

This may be the smell of Varnish used in motor winding. When we turn on the machine it gets heated a little bit resulting in a burning electrical smell.