My Whirlpool Microwave/Hood Combination Model MH1150XM has an exterior wall exhaust and the fan runs just fine. The problem is the fan is not pulling any air from under the unit. It won't even hold a tissue up to the vents. Without taking the unit out how can I troubleshoot for possible blockage?
Tags: air, Fan, mh1150xm, microwave, model, Pulling, Whirlpool