Vivian for Model Number MDE7400AYW Serial no. 12710680AX First of all you offer great customer service with this question/answer feature. Thank you for trying to assist those of us trying to do it ourselves. After reading the questions/answers, my problem is similar to entries submitted by Christina. The dryer comes on easily after replacing a timer in the past 12 months or so, but the dryer won't cut off unless you open the door. You can turn the dial to a "Time Dry" setting or the two "Intellidry" settings, but the dial never advances. The dryer won't shut off on any setting. I am wondering if have the correct timer installed after reading the entries. Later today I'll be able to pull the dryer from the wall and I'll get the timer part no. we installed. Can you tell me which timer I should have installed and I'll go from there. Thank you!
Answer Vivian, The ideal situation, would be to have the number off the original timer, But based on your model and serial number you should install timer part number WP33002855 . If you have the correct timer installed, then you need to consider the dryness control board WP33002734 and wiring. The neutral circuit to the timer motor is accomplished through this control board, and if there's an issue in the circuits on the board, or no neutral to the dryer, the timer will not advance, regardless of cycle selected. Good Luck and Thanks. Read More... Answered by AppliancePartsPros.com | Monday, January 23, 2012