DWHD440MFP (08) Thermador Dishwasher - Instructions

Replaced ‘sump’ housing , seal was leaking on it- replaced inop float on water level warning system switch, and switch itself as well- replaced drain pump motor attached to sump- replaced o-ring seal at water sprayer inlet valve- replaced water inlet plastic assemble on side of dishwasher- replaced drain hose out of sump assembly.

Used YouTube video to understand repair- this is an involved repair in time and complexity- dishwasher eventually gets turned upside down once removed and stripped down, to remove the white plastic water pan , which then allows access to the guts of all the above parts- some critical seals only come with new assemblies, so you are buying that new part to get a new seal and ensure no new leaks from what you took apart.

Part arrived on time. Double checked it was the part I needed. I unclipped the old seal and snapped the new piece in place.

A rat got under the dishwasher and chewed up the electric’s and the hoses. Only found out when the air light came on drain not working Lots of water underneath as well as all kinds or shoot insulation and rat droppings had to wear a mask affect him use a bunch of Clorox before I could diagnose it a real party And hard to reach corners.
I ordered four parts since I found a better deal on the main electric cable which a rat head chewed through until it had an electrocuted itself. These four parts came in three different boxes and three different deliveries over two weeks. not efficient. But handwashing is over put it all together and it works I soaked the hose in hot water so I could fit it on.

Removed the middle basket and turned it upside down. Unplugged the spray arm from the middle basket. Snapped the new spray arm into the middle basket.
Installed middle basket into slides.
It works great. Great site for parts - reasonable prices too

The wheel easily snapped in.