i ordered a new ice door for this model. it was actually from a whirlpool refrig/freezer but i was told from your company these were interchangable. i got the new door and was replacing it but the new one does not have what i beleive to be a door warmer attached. it is a flat ribbon wire exiting from in between the plastic door and foam cover. is this warmer needed? or did i get the wrong part for this replacement

thanks for your reply. after replacing the door, the wire which came with the old door was not attachced anyway. the connector for this wire had a plastic piece in it which made connecting this ?warmer? impossible! it was like this since i purchased the appliance and therefore never was working to begin with. so i guess the warmer is not needed and i attached the new door assembly which was sent. we'll see if this ends my ice crystal problems with this dispenser. i did attach the old door wire to see if it warmed the piece and it did. any ideas why it was never connected at the factory? and why did they decide to stop using it?