Dean B for Model Number AR8057CW Thanks for the great advice. I used the other instructions to check the continuity on the heater and thermostat and so likely will need to replace the defrost timer. I took apart the assembly and found that it's connected via a belt to the temperature control and the mechanism at the damper door. I can't quite figure out exactly how to remove and replace it and make sure it's all connected mechanically. Can you explain how this setup works and how to replace the timer? Thanks!
Answer Dean, Once you have the panel and cover down, and access to the gear, you'll need to look closely and you should see that there is a longer segment on the gear(s) 67001037 and a matching slot in the belt WP67001040. These are your two alignment slots and if you're careful, you can remove the belt without issues. and the gears are "keyed" to fit the control shafts in one position. We'll be sending you some additional information that should be helpful. Thanks Read More... Answered by AppliancePartsPros.com | Wednesday, September 5, 2012