Model Number: WDT790SLYM3
Brand: Whirlpool
Age: 1-5 years

Error code 8-1 as stated in Tech Sheet that came with dishwasher says "slow drain" yet when I start the dishwasher or after a full cycle I push the
drain button I can hear the drain pump and water being pumped out of the sump. What senses a "slow drain"? There is no blockage
in the drain hoses and since I can hear water running through the anti-siphon valve on the kitchen sink I find it hard to believe there is a drain
pump issue. In looking at the parts available for this model what is a "diverter valve motor" used for?