How to Troubleshoot & Replace Whirlpool AP6014731 / WPW10016550 Lower Blower Assembly

I used the appropriate Whirlpool parts list, and diagrams, to identify the proper blower (there is one for the microwave and one for the oven), as well as a replacement bulb for the microwave. Received both within 4 business days. As others have mentioned, it definitely takes two people to lift the unit out and put it back - don't try it on your own. Once out, I removed the lower and upper back panels to expose the blower. Note, there is a metal "plate" over the blower that you just have to loosen to get to all three screws holding the blower. Very easy to pull out and replace. After carefully removing the top of the microwave, I gave up on replacing the light after realizing you still have 2 more layers of metal and wires to remove before accessing the light. As many have said, the light is a very poor design with regards to bulb replacement. I was done within 2 hours, and the unit is supper quiet now. 

Replaced lower blower assembly. No small task for a double oven. Actual repair time 1 hour. Total time a bit longer. Easiest way to accomplish this is to build a roller dolly to slide under the oven as you pull it from the wall. Make it between one quarter and one half inch higher than the bottom of the oven. Easier to lift the front of the oven on removal than attempting to lift the back up as it goes back in. Blower motor is inside the back of the oven. Pull the two sheet metal back panels. Disconnect the two spade connectors to the fan assembly. Re attach the new one. Button the back up and slide back into the wall. 

It was relatively easy to replace it. Some suggestions: 1. Make a platform to support the oven when you slide it out of the cabinet. Make the platform sturdy because this thing is heavy. Make the platform the same height as the cabinet so that you can just slide it out and back in without having to lift it. 2. The fan is secured with about 5 sheet metal screws plus there are 3 screws on the top that the fan slides under when you loosen them. However you can't fit a screw driver in the space to do the job. I had to use a plier to grip the round head screw and loosen it. That was difficult and took a long time. When I put the new fan in I replaced the 3 screws with hex head screws so that I could use small wrench to tighten them. 3. Of course turn off the circuit before you start. 

It needed a new blower motor. I ordered it and it arrived quickly. It took 2 people to lift out the double oven from the wall. Take off the sheet metal covering. Trade out the old blower motor, put it all back together and lift it back. Easy 

REPLACED UPPER BLOWER WHICH WASN'T THE NOISY ONE, THEN REALIZED MY KITCHEN AID COMBO MICRO-CONVECTION OVEN HAD A LONGER LOWER BLOWER. REPLACED THAT ONE, WHICH WAS THE NOISY ONE. NOW MY THERMAL OVERLOAD PROTECTOR HAS FAILED AFTER A SELF-CLEAN CYCLE! WHILE THE UNIT WAS OUT, I CLEANED THE SMALL SPACES WHERE THE BLOWERS VENT TO THE FRONT. NOT AN EASY TASK. I TOOK A PIECE OF WIRE WITH A RAG AND SIMPLE GREEN TO CLEAN OUT THE DIRT CHUNKS AND GREASE. BE CAREFUL OF THE LATCH WIRING! ALSO CHANGED THE MICRO LIGHT BULB. BAD DESIGN, AS YOU HAVE TO TEAR INTO ALOT OF REMOVAL OF HARDWARE TO GET TO THE BULB! 

This blower assembly is located in the back, between the microwave and oven. The video was very helpful and explains the repair procedure exactly. The actual replacement of the fan is straightforward. This work requires two strong people to remove the unit from the wall. I highly recommend that you have a 19" to 20" elevated platform to set the wall unit on like a large tall cooler or something that can hold its weight. 

Turned off power to the oven. Remobed the trim and unscrewed 4 screws holdin the ovens to the wall. Removed the upper and lower doors from the oven. Placed a folding chair on each side ofnthe oven. This was about the right height to support my stove. Then with the assistance of my friend we slidnrhe stove out of the wall onto the open folding chairs. We removed the top cover and back cover exposing the upper and lower fan. We then unscrewed the fans and removed the power clips. A pair of pliers or an offset screwed driver was needed.for.the lower fan. installation was just tje reverse. Before placing the obens back in the wall, power wad temporarily restored to test the installation and operation. Aftet a successful test power was turned off. The oven was slid back into the wall. Screws were replaced. The trim and the doors were then replaced. 

I replaced the bottom fan and while I had the double oven pulled out of the cabinet, changed out the fan in the top tray as well. It was a straight forward easy repair. 

I purchased the part that I needed. Watched the video on Appliance Parts Pros and then my wife and I pulled our Kitchenaid oven/microwave unit out of the cabinet and switched out the fan. It was quick and easy and saved us about $2,800, considering some folks would just have had the unit replaced. 

Removed oven/microwave combo from enclosure. Took off back plate screws and replaced blower. Utilized the directions and tips given in video demonstration.