Customer showed me where the Dishwasher leak was coming from. It was coming from the pressure relief valve on the booster. Said it happened when he open the drain to empty out some water to do the de-liming. Turned on the d/w. Filled and heated. Wash at 158°. Ran many cycles and could not get relief valve to open. Getting a 36 amp draw from the element. Contactor de-energized when temps are reached. Cycles on/off to maintain temp. Does not overheat. Let sit idle a while and observe. Ran cycle. Cycle ended. Did not open door. After a minute or so the Fill light came on. Then went into wash cycle. The water level is dropping. There is lime I the tank and lime pieces. Customer will clean out. Pulled out the drain stop. The o'ring is cracking cause the water to leak by. Need new o'ring. No other problems or leaks. Will obtain part and return. 2/14/20 Follow up - Replaced drain stop gasket filled and unit. No other leaks found unit operating properly.