Does your vent have a protective flap over the opening - when microwave is blowing out it opens and drops shut when not. Mine has a little clip that rotates and locks it closed which I leave shut all the time as we don't use the exhaust much. Maybe during a hard rain the wind blows the flap up and lets water in?????
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
|