Conrad for Model Number WDT720PADM0 My dishwasher is intermittently not completing cycles, and we find the soap puck undissolved in the base of the machine. The inlet valve functions properly and fills the sump upon startup. I hear what I believe to be the diverter motor running and clicking within the first minute after that. However, the circulation pump will only sometimes run. I am getting codes F6E6 and F7E2 which appear to relate to cold water temp, but I have verified my incoming water is nice and hot as it should be. What component should I troubleshoot next?
Answer Hello Conrad, the codes refer to low-temperature incoming water and a possible heater problem, however, if the control board does not see the circulation pump running it will disable the heater resulting in the code. As a check uninstall the dishwasher and look for the 2 Light blue wires going to the circulation pump which is under and toward the rear of the tub base, unlock the wire connection to the pump and repeatedly move it out/in,(cleaning the terminals,) reinstall the dishwasher and check if it has corrected the problem at least temporarily, if so the main wire harness W10850395 will need to be replaced, this is usually not a pump or control board problem. Read More... Answered by AppliancePartsPros.com | Friday, March 4, 2022