I have a Quiet Partner GU1200XT that I bought from a neighbor that is not getting the dishes clean. It leaves food and a residue on the dishes.

I checked the spray arms which seem to be fine. The water is getting very hot and the pressure in our house is very good.

Last month I replaced the check valve and the chopper, but this hasn't helped.

What else could be wrong?

Hi,

GU1200XT is just a partial model#, whats the complete model#? The model# tag is located inside the dishwasher on the upper tub walls.

Sounds like you will need a new motor. Whirlpool had a few issues on that model with the motors.

You can order just the motor alone, or the motor/sump assembly which is higher in price, but easier/less steps to install.

Jake

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Star Appliance Tech. 2 yrs. 1988-1990
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Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
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Full model number is GU1200XTKQ0

__________________
Many thanks,

Jillian

Thanks,

Here's the sump/motor assembly for your model:
Part#8535150



Here's the motor alone:
Part#8534942



Here's the repair manual for your model, it explains how to change both:
https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/52521bdbd0ef763c85256cbc00520548/$FILE/8178022.pdf

Jake

__________________
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present

If you need more repair advice help on your appliance, click Here

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Thanks Jake. How much harder is installing just the motor? My husband and I are both quite handy.

__________________
Many thanks,

Jillian

Its not to much harder, just takes more time and abit more involved, but if you follow the instructions in the repair manual, you should have any problems.

Jake

__________________
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present

If you need more repair advice help on your appliance, click Here

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Is there a way I can tell for sure if it is the motor?

__________________
Many thanks,

Jillian

Sometimes, check the motor impeller, does it look worn out or beat up? Is the motor impeller stripped from the motor shaft, free turning on its own?

Jake

__________________
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present

If you need more repair advice help on your appliance, click Here

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The motor impeller looks fine and it turns freely.

__________________
Many thanks,

Jillian

Ok, from my experience on these models, installing a new sump/motor assembly usually fixes the problem 95% of the time.

If you order the sump/motor assembly from the link I posted above and install it and it doesn't fix the problem, you can return it within 30 days for a full refund.

Jake

__________________
Appliance Repair School 1987-1988
Star Appliance Tech. 2 yrs. 1988-1990
Wards Appliance Tech. 11 yrs. 1990-2001
Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
Jake's Appliance Repair Nov. 2005-present

If you need more repair advice help on your appliance, click Here

Look-Up & Order Parts

Shop Home Appliances