NE58K9852WG (AA-0000) Samsung Microwave Oven Combo - Instructions

I took off the back cover after I looked at youtube similar problems. Then removed the little thermostat and un hooked the 2 wires. I looked up the part and after is was delivered couple days later I connected the 2 wies and after putting the back cover on the oven was back to normal. Was such an easy repair and the part was only $11.

First remove the internal fan guard, (two Philips Screws). Holding the fan blade and using a nut driver (10mm?) attempt to carefully remove the nut off of the shaft. If it loosens with a counterclockwise rotation, it is a Right Hand thread, Part#: PS11720788. If it loosens clockwise, it is Left Handed and is Part# PS11720787. When the correct fan arrives, check to make sure it matches, then continue with installation.
TURN THE POWER OFF
Following the door removal instructions in the Owners Manual, remove both upper and lower doors. Remove the screws that go into the cabinet on the sides, I believe there are (6). The bottom vent cover is also attached with the bottom screws, so you can remove that and set it aside.

Get some help to assist you with moving the stove out of the wall cavity, it's not heavy, but awkward. I used a small furniture cart, and the second time I used blocking on the cart to raise it to just below the oven and was able to easily slide out/in.
Rotate the oven so you can visualize the back. There are two panels on the back to remove, Starting with the bottom one, remove the screws, (a couple in the middle too) and slide the panel up, (Tabs into a notch on the top of each side of the panel) The second panel comes off the same way, there may be some screws on the side and top you need to be aware of. Once you open the back, the fan that needs to be replaced should be identical. If you have already removed the guard and fan blade from the inside compartment, it should be a simple swap out.
Put it back together in reverse order, put power back on and check to see if it worked. If so, slide it back into the cabinet, be careful the flex conduit is aligned so it doesn't interfere. Second time around it only took me about an hour total and I didn't need assistance.
Fan works, Oven quiet, Happy Wife, Happy Life.

Install handled by building engineer...thankfully. Did not take long for him, however, to install both sides of the drawer.

I had previously replaced the heating element and heat sensor to the range. The cost of replacing the thermostat was minimal. The key to replacing the thermostat is finding where it is located. Several videos describing the Samsung thermostat showed it housed under the top of the stove. This particular model places the thermostat at the back of the range near the left side. After unplugging the range, and removing the back cover with a Phillips screwdriver, it was easy to locate the thermostat. After unplugging the existing one, and using a very small flathead screwdriver to gently pry the upper and lower clips holding it in place, installation of the new thermostat was a breeze. Removing and replacing did not take more than a couple of minutes. The oven is now heating properly at all temperature settings. I would recommend finding a schematic of the range showing the location of all the parts before beginning the repair.

Pulled off the back panel (6 screws) thermostat was right there removed 2 wires and replaced with new put the panel back on done

My repair went terrible as I was sent the wrong motor 2 times. My stove sat in the middle of my small kitchen for 2 weeks. Finally the 3rd was the correct one except I didn't have the right nut so I waited another day for that to be sent. Everything working good now, I just hope the bottom fan doesn't go out after this experience.