Tim Martin for Model Number GU1100XTLQ1 Dishwasher will not heat water. I replaced thermister and didn't fix problem. I can turn heater on in dianostic mode but will not come on during wash cycle. I think it may be control board.
Answer Hello Tim. Based on the information you provided, it sounds like the control board WP8564543 is bad and will need to be replaced. Hope this helps. Read More... Answered by AppliancePartsPros.com | Tuesday, February 14, 2012