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FIXED WDT970SAHZ0 Whirlpool Dishwasher - Clicking noise and not washing dishes

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eric859

Premium Member
Joined
Jul 14, 2021
Messages
3
Location
USA
Model Number
WDT970SAHZ0
Brand
Whirlpool
Age
1-5 years
I have been trying to troubleshoot this issue. It's filling and draining fine. Just not washing. I know the spray arms are supposed to spin and shoot water during the wash cycle, but when that happens I hear a clicking noise from something and the arms don't spin. Also, water trickles out of the arms. I figured it was the circulation pump, so I replaced it. Same problem. Searching online seems to always show the circ pump as the issue, but if there's a seperate motor that spins the arms that's not working, then that may be the issue. But if it's just an issue with a motor spining the arms while the pump is applying the water pressure, then wouldn't water be spraying out of the completely still arms instead of just trickling out? Questions I have:

1. Is there a motor completely seperate from the circulation pump that is causing the clicking noise and not working?​
2. Is there a valve somewhere that may be stopping the motor and/or circ pump from working entirely?​
3. Is there a way to tell the dishwasher to just run the circ pump instead of a full wash cycle so I can test the 120v power flow with a multimeter? I have to take the dishwasher out and lay it down to access the pump, so I can't just tell it to go through a whole cycle and wait until I think it is sending power to the pump.​
4. Is there a diagnostic that I can use with this specific dishwasher?​
I'm going nuts here. Most of the videos I see online don't match up with my specific dishwasher, so it's hard to do this myself. Any help would be greatly appreciated. Thanks
 

rickgburton

Appliance Tech - Moderator
Staff member
Joined
Jul 11, 2006
Messages
43,606
Location
Murray, Utah 84107, United States
What's the part number of the part you just replaced? It sounds like a circulation motor or diverter motor problem. When there's a circulation motor problem we always recommend replacing the pump motor assembly. The assembly comes with a new sump and diverter motor for the same price. Check for error codes. The control can store up to 4 error codes.

W10537869 Diverter Motor


Error codes look like F-# E-#.

With the machine empty and in standby mode:

Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more than 1 second between key presses.

The Service Diagnostics cycle will start when the door is closed.

Let the diagnostic cycle finish.
 

eric859

Premium Member
Joined
Jul 14, 2021
Messages
3
Location
USA
Thank you for the reply! I believe I found the issue. I'm almost positive it's the diverter motor. I wish I knew about the assembly being the same price as a pump, I'm going to send back the pump, reinstall the old pump which I now know still works and I should be good to go. I'm getting the motor tomorrow so I'll update the thread with the results.
 

eric859

Premium Member
Joined
Jul 14, 2021
Messages
3
Location
USA
It was the diverter motor. Much cheaper to replace than the pump. Working perfectly now. Thanks!
 
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