The unit in question is a 7 year old Kenmore. I first noticed the problem about six weeks ago, when opening the door to empty the dishwasher and there was still some powdered soap in the soap cup. Since then, this has been a constant. The soap is never fully incorporated into the wash cycle. Not only that, as time has passed the amount of soap remaining in the cup has grown. Meaning, less and less soap is being used, with the result being the dishes arenít coming out clean any longer. Iíve checked to be sure the cup is always fully opened and it is. Iíve changed brands of powdered soap but still the results are the same. I have even tried different wash cycles but still the soap remains and the dishware isnít being cleaned very well.
I have tried adding water before the main wash cycle begins, thinking the level might be too low due to a bad water inlet valve. Didn't help, valve OK.
Then I tested the water temp and, sure enough, it is only 110 degrees, probably about 25 degrees too cool. The hot water at the tap is also 110, meaning the dishwasher, which has a built in water heater, isn't working. If my assessment of this is correct, can someone tell me what's involved in repairing the unit? Or should I scrap it and buy a new one?