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Samsung Dishwasher DW80R7061UG Won't Fill

crayz4life

Premium Member
Joined
Jul 7, 2022
Messages
2
Location
GA
Model Number
DW80R7061UG
Brand
Samsung
Age
1-5 years
DW80R7061UG - Dishwasher will not fill on any cycle type(normal, heavy, delicate...etc) Produces no error code except when I run the post install "test cycle" then I get a PC error code, 4 bing bongs then the drain pump runs for a few seconds, then the 4 bing bongs again. That cycle repeats until I cut the power.
Manufactured 9/2020
Confirmed the water inlet solenoid is good. When I put 120v to it, it opens and water flows.
Replaced computer board with a known good one and get exact same symptoms.
Manifold motor also confirmed operational along with the associated cam switch.
Maybe the dishwasher thinks it's full of water already?? The wash cycle seem to progress even though there is no water. I hear relays click and the cycle timer continues to count down. No error code is displayed.
My old dishwasher had a float switch but this one does not(at least not that I can find). How do these new dishwashers know if they're full of water or not??

Searched online and found very little useful info about the PC error code. Mostly things like this: PC error occurs when the zone wash function is not working correctly

Anyone have a schematic or the service manual for this model?
Any assistance would be appreciated. I really can't afford to buy a new one right now.
Thank you
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,583
Location
Redmond, Oregon
Hi,

Sorry, we couldn't locate the service manual or tech. data sheet for this model to help you out, hopefully another tech or member that has it or knows what will solve this problem, can share it with you to fix your "no fill" dishwasher.

I'm not familiar with Samsung dishwashers or I would help you fix it.

Other than that, you can contact Samsung at 1-800-SAMSUNG (726-7864) and have them come out to see what's going on.

Jake
 

crayz4life

Premium Member
Joined
Jul 7, 2022
Messages
2
Location
GA
Thank you for the response.
I did a bit more troubleshooting. If I start a cycle and wait about a minute or so I can open the door pour water into the dishwasher and it will wash so it seems the only problem is the signal is not being sent to energize the fill solenoid. I did swap out the main computer/relay board with no change but there is another small circuit board that connects to the control panel and to the main computer/relay board. Maybe that's the problem. I hate throwing parts at it but with no schematic or service manual that may be my only option. One way or another I am going to get this thing working. All the discreet components are working. Pumps, motors solenoids...etc so it has to be a cable or circuit board issue...I think :)
I still don't understand how the dishwasher knows if it's full of water or empty. There is no float switch. Maybe it is just timed? Like the solenoid is energized for 1 minute or something like that. I doubt it because depending on the water pressure you could end up over or under filled. Maybe it uses the turbidity sensor??
Well, I'm off to F with it some more.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
132,583
Location
Redmond, Oregon
Those are good questions but without the tech data sheet or service manual there is no way to know how how to test the turbidity sensor.

Jake
 
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