Http://www.ehow.com/how_12088430_removing-U1-code-fisher-paykel-dish-drawer.html after start washing stops and u1 epair

U1 is a filling fault , so you will have to check the water supply into the dish draw is turned fully open and the hose is not damaged or kinked . Ensure the spray arm inside the draw is free to rotate and clean out the strainers inside as well .It would also pay to check the levels on the machine .If you run the dishwasher whilst using water else where the water pressure may also be dropping to much or even changes in temperature may effect it .

Good luck

http://www.fisherpaykel.com/vault/pdfs//pdf_usecares/590199D%20DishDrawerP7%20userguide%20USCANZAUGBIE.pdf

U1 is a water supply error , it explains it all in this manual Cheers

Hi there Ypowers, U1 fault code relates to the fill system. Is the tap turned on, is the spray arm position correctly and free to rotate, nothing blocking it?. I hope this helps regards Gary.

Hi,
U1 fault if caused by several things: water supply not turned on (I doubt that), unit is syphoning causing not water in tub to be detected during cycle (this is possible if the drain system in incorrectly installed), spray arm in the drawer is not in place or get moved somehow, excessive foaming (wrong soap or too much), inlet valve failed, controller failed, or rotor not fitted correctly.
I would inspect this issues and locate the reason the unit will not complete the cycle, you may end up replacing the controller in that drawer to fix the problem (as a last resort).
Good Luck

I’m happy to help further over the phone at https://www.6ya.com/expert/gere_bf68e6055dd61249

hi, this tells you everything you need to know about a
fisher& paykel model DW820 and DW920 modelsi was also looking for the u1 error, and im sure my problem is being a male i use to much detergent (powder) that creates extra foam :o) oops lol but theres a list of things u1 error could be, i also found a few things out i wanted to know but googled before and found nothing. basically its better than the manual with everything you need to know. have fun.

http://www.fisherpaykel.com.au/admin/pdfs/pdf_usecares/521766I_DW920_ugm_NZw.pdf
if your computer doesnt read pdf files like mine didnt :( when you download and open it, it will ask to check internet for a program to download that reads it, in the list that shows i chose adobe reader 8, works well, anyway this will help im sure from max

Hi,

"U1 error code" means the unit has failed to prime with water within 3 minutes. Its taking longer than expected to fill with water. Check the fill valve,it might be due to water supply problem, or the spray arm might not be in the exact position place.Check the above to fix this error code.

Thank you !!

Have you checked whether you are getting the water supply to the dishwasher. Check if there is no kink in the water hose.

If no problem with water supply then check the water pressure rating is OK for the dishwasher.

Hi,
Below is the link to the service manual
http://www.scribd.com/doc/6462163/DD601V2-Manual
This will be able to explain the problems better that I can in the tiny space I get to write in.
Mat
Please rate me

U1= Machine has failed to prime with water within
approx. 3 minutes
 The water supply is not turned on
 The machine is syphoning
 The spray arm is not in place
 Excessive foaming
 The Inlet Valve has failed
 The electronic controller has failed
 Rotor not fitted correctly