I have noticed significant grease buildup on the bottom of my Whirlpool dishwasher's door. The dishwasher was purchased brand new in the early 2000s.
I have heard that someone has already tried adding vinegar during a wash cycle to no avail. A quick check of the water temperature with a thermometer reveals a hot water temperature of about 105 degrees Fahrenheit from the nearby kitchen faucet.
Furthermore, the problem happens even after I turn on "HIGH TEMP WASH".
What measures can I take to prevent the problem from recurring after cleaning off the buildup?