Having problems with your KitchenAid Dishwashers ?

My Kitchen Aid KUDS01FLSS2 dishwasher does not spray water thru the wash arms nor do they seem to turn. Additionally, one of the the bottom arms hits the "cap, internal rear feed" where it clips to "feed tube assembly" when rotated by hand. The spray arm assembly appears true on visual examination. The unit fills, cycles and pumps out in an apparent normal way. While on this site a while back I was advised to clean the unit and referred to a downloadable repair manual that was, in fact, not


Answers :

Hi.

The fact that "one of the the bottom arms hits the "cap, internal rear feed" where it clips to "feed tube assembly" would suggest a tubing problem. However there are more faults that will result in no spray. Testing in this case can become quite complicate. I suggest calling a technician to perform testing with power on and with door switch jumped.

First inspect the tubing going to the spray arm. If there is a leak the water will fall back inside the tub and there will be no spraying. Use the diagram below to check that all parts are in place. Click on the picture to enlarge:

ginko_129.gif

ginko_130.gif


If there is no leak, then the pump may be not working. A technician can see if the pump is working or if there is a leak by jumping the door switch and opening the door a bit to observe the situation.

You can access the pump hose and check that there is no blockage in the hose connected to the pump, as this may result in no spray.

Even if I think that the problem is either tubing or impeller pump, there are more faults that may result in no spray, I will list them below:

Underfilling: If the machine is underfilling the pump may not catch enough water and won't spray. Check float switch. if there is water in the overfill system, empty the water.

Thermostat. The machine will start recirculating when the thermistor opens. Check hot inlet and test the Thermistor reading impedance with a multimeter. If thermistor does not open in hot water or it is open at room, then the thermistor must be replaced.Thermistor open means that the multimeter shows infinite Ohms when you touch the thermistor contacts with multi-meter probes.

Clogged arms or orifices: The spray arms, ducts or orifices are blocked. This is checked taking apart and cleaning the parts in the two diagrams above.

Main control board: I don't think this is the case. The main control module is replaced when there is no other explanation for the fault.

Start checking from spray arms. Ensure that the pump is working, and check the overfill system. Disconnect power before performing any test.

Here all parts and diagrams for your appliance.

Regards.

Ginko
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