We have had the same problem, except the water was not getting hot either. After a ton of research there was an issue that kept popping up. There was a massive recall on many of the model and serial #s. According to the recall there was a fire risk from the control board, the brains for the machine, that sits behind the digital display. For those not "at risk" but with the water not heating and the run time increasing, the problem can still be with the control board. I removed the control board and found a burned out connection with one of the controls. I soldered it and put the machine back together. The run time has returned to much closer (down to 128 from 184) than before the fix, but still is not back down to the original 108 minutes. I've priced a new control board--about $120.
This happened right after the warranty ran out. Imagine that.
Hi, The dishwasher must get to 70c to advance thru the heating cycle.. check to see if the heater is coming on( lots of steam coming out when you open the door )..not getting hot then you could have a heater problem. if you are getting hot then you have a Thermo ... the thermo holds the the dishwasher until the temp reaches 70c before it will let it go into the next cycle...the thermo is under the dishwasher at the right side, white with two wires .. it screws into the tub...hope it helps it not let me know and I can help you more.
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