What is an exhaust damper? What is an exhaust damper adaptor?
ANSWER Hello Charles. DE72-40022A is the damper adaptor. It is the frame on the microwave for the vent to attach to. The damper W10197773 is the flap inside the frame that prevents cold air from coming inside the unit.
Answered by AppliancePartsPros.com | Thursday, February 07, 2013