Looking for Answers about samsung SMH1816S 1.8 cu. ft. Over-the-Range Microwave (Stainless Steel)?

I am adapting the unit for recirculating use (non vented).

I went to start the Microwave and it went to start up then went dark. I checked the electrical outlet and it works. This Microwave is only 2 Months old.

Under door and outside unit, there seems to appear moisture that was not there before. This happens when there is nothing cooking on the range and for no obvious reason.What could cause this to happen?

The instructions say the fan starts automatically when it senses heat from the cooktop. We have cooked severl things and the fan has yet to start by itself. How hot does it need to be?

What would cause smoke in microwave SMH1816S 1.8 cu. ft. Over-the-Range Microwave. Nothing happened, just smoke started coming out, any help please.

I've only had the microwave about a month and already see spatters on the glass, which are not on the outside where I can clean them.

Just purchased the microwave

Tt appears there is a plastic-type cover over the inside of the door, which has developed some air bubbles with very light use. (We've only used it a handful of times). Should this be pealed off, and if not, is it normal to show signs of air bubbles behind the plastic type material?
It is the SMH1816S (Stainless Steel) model, over-the-range microwave.

Thanks!

I only installed this OTR microwave oven two days ago. This morning I noticed a very small bit of paint had flaked off at the back of the inside of the oven and a small unbroken crack emanating from it. Wasn't there yesterday! I can't believe it, this oven is brand new!!! I've already started researching "microwave oven cavity paint." Do Samsung sell touch-up paint? The inside is bright white.

One question, two comments:

(1) How do I install the black charcoal filter? It's NOT in the parts list on page 6 of the installation manual. There are NO pictures that look like this microwave in the manual. Page 13, step B2 shows the installation but that diagram is all wrong. The filter looks like it can fit in that space as shown but to get there would require removing the entire skin - clearly not a user accessible feature. The plastic vent can't come off because the door is in the way. So what do I do with it?

(2) Your manual stinks. This microwave vents out the top but the pictures and directions don't tell you to account for this. Luckily I did. You need to at least show pictures of the needed clearance for the vent.

(3) Why vent via the top? Your diagrams show 12 inch cabinets over the microwave but that's almost never done. Most installations pull the cabinet forward for style. In a replacement scenario where the cabinet is already in place, this can mean the vent blows into the cabinet's bottom. Not a smart design at all.

This is my 2nd OTR Samsung microwave. The last one only lasted 4 years. I'm giving Samsung another chance since I've had good results with other Samsung products in the past.

It sounds like something is turning or venting for a few seconds, and then stops. The device is under a month old, and I believe it has done this since the beginning. I haven't found any information on this regarding if it is normal or not. I am venting out of the top, please let me know if I should call for a technician. It may just be the top fan slowing down, but I just want to make sure this is normal. Thanks!