First I looked at how I would get to the blower - this took 15 minutes. I removed the grills to access the burners. Then I removed the burners that took approx. 15 minutes. I then had to remove the knobs for the burners. Next I had to remove the front control panel which had 2 screws - (did not disconnect any wires but supported it). Next I had to remove the side trim. Next I removed 4-5 screws that secured the upper burner range top. Next I removed the side panels which has a braket on the lower forward side and 2 rear screws on each panel. Next I had to remove the aft backspash guard. At the back I had to remove a support braket that had several screws - then I had to remove the exhaust fan back panel guard. Next I had to remove approx. 7 screws on each side of the stove that supports the burner valves. Then I lifted the left side most closest to the blower. This gave me access just enough to remove the mounting screws (4) and to remove the 2 wires. There was some cushioning material which I found inadequate to prevent any vibration when the fan and the valve support top sits on the blower - so I doubled it. Then I reinstalled everything. This job took me 4 hours. I suggest calling a Kitchenaid repair technician and not doing this yourself. Unless you are a mechanically inclined and really like frustration.
Pulled out stove and removed side panel, then removed old fan unit. Installed new fan unit and replaced side of stove then slide back in place, stove runs even more quiet than when it was new. And obtaining the new part from Partselect was even easier than dealing with a part store where you stand at the counter. This service really has the part down pat for us layman repair people.
After turning of the breaker for the oven, I pulled out the oven, removed the back panel. The High-Temp thermal cutoff was attached to 2 wires, which I unplugged, and then removed the cutoff by removing two screws. I then replaced the part in reverse order, pushed the oven back into the cabinet, and turned the breaker back on.
Since there is multiple glass panels with several brackets, screws and insulation within the oven door I strongly suggest to take photos at each step using your smart phone. Do not attempt to remove all the components at once. Bracket positions, screw locations and glass orientation is necessary. This is the best advice I have to make this a quick and very easy job.
The steel mounting screw tends to seize in the aluminum burner head. It is not easy to extract, or to drill out and rethread. My advice is to replace the burner head at the same time.
cleaning oven door, fell on floor and broke inner door glasses
took apart and empty the broken glass! ordered parts too many glasses and no insulation ( no insulation in oven door when taken apart! Got the correct parts on order via a second sales person! Installed glass hinges, insulation and closed the door! and instaleed the oven door!