light stays on

1. First my convection part of this microwave, the fan started to ding a ling a ling, the convection heats up but does not spread the heat, I'm thinking it's loose like a nut feel off or is loose, as i heard the fan sounds like it was hitting metal like it was loose. 2. My Microwave oven light...

I have a KA Model #KODE500ESS01 double wall oven I just installed. The lower oven works fine, heats ujp, self cleans, the upper does not. The lights come on after I turn on the breaker and the lights stay on in both ovens. When I start the cleaning in the bottom oven the lights turn off. I...