Hi, looking for the genius troubleshooting I always find here.
I've got a dd603 that has suddenly started kicking off a U1 fault on the top drawer only.
Here's what's weird: it will deliver the fault at random across a cycle. Bottom drawer works fine.
Once I get the fault the only thing I have to do is push the start button and the cycle continues until it gets another fault.
It will do a fast cycle in diagnostics without any problems. Fill in diagnostics seems to work fine. Swapped the rotors between the bottom drawer (which has no issues) and the top and that doesn't clear up the issue (top drawer gets the fault with either rotor).
Thanks in advance for the help!