Dean K Hamilton Township , NJ May 13, 2017 Appliance: Whirlpool Undercounter Dishwasher WDT710PAYM5 Whirlpool Dishwasher Wdt710paym5 / : Not heating drying the dishes. How to replace Electronic Control Board (Main Control). As it turned out it was the main control board Thank you for your help. The relay for the heating element was bad 29 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes