Steve for Model Number Mod# MDG7400AWW Serial # 15540713CC Which Timer Do I need? How do the knobs come off?
Answer Hello Steve. Based on the model and serial number you provided, WP33002855 is the correct timer. You will need to remove the cap WP22003989 off the timer knob to release the knob from the timer. The cap unsnapps off the knob. Hope this helps. Read More... Answered by AppliancePartsPros.com | Saturday, September 17, 2011