GMC275PDB0 Whirlpool Microwave Oven Combo - Instructions

Removed the door and laid it flat with the cracked glass facing up. applied duct tape to the broken glass to help hold it together. Removed the screws from the frame holding the glass. lifted the frame off,removed the broken glass and replaced it with the new piece. replaced the frame. and put the door back on the oven.

Removed all terminals and block mounting screws. Repaired one burnt terminal and reassembled. Replacement part was an exact fit and reassembly whnet very well.

The replacement turntable we received was an exact duplicate of the original. It was as easy as rinsing the new turntable, taking the old turntable out and putting the new one in.

Replaced the lower heating element with a new part.

cut power off and placed sturdy table same height as bottom of oven in front of oven. removed trim screws. pulled oven out onto table. removed top cover and panel on left side . tested transformer to be sure it was bad. then replaced transforner

Ordered a new one, put it in place in less than one minute.

The replacement of the blower was an easy repair. Just had to remove two back panels of the oven and the blower was then very accessable. Just remove the two electrical wires and then three screws and the blower came right off. Put the new blower on with the three screws and replaced the 10 or 12 screws holding the back panels and the job was complete!. The difficult part of the job was removing the combo unit from the cabinet to access the back panels. That part took some effort. Had to build a platform to slide the oven out onto after I disconnected the electrical feed wire (#6 wire) located in a junction box in my attic. Once that was done, the actual blower replacement was simple. The turntable motor was a different story...Although replacing the turntable motor was going to be as easy as replacing the blower motor, I couldn't access the underside of the microwave without disassembling the whole combo unit cabinet! That was very disappointing to me that Whirlpool didn't make that part easier to access, so I didn't replace the turntable motor. Too bad but we are just going to live with the turntable not turning!!

Part arrived in timely manner and placed it in microwave oven.

Set the new one inside the microwave

PartSelect website indicated replacing the high voltage power supply diode is the solution for "no heat" 99% of the time, but the diode was OK. There is more info at the website concerning the case of "loud buzzing and no heat" indicating the magnetron needs to be replaced. As an electrical engineer with knowledge of microwave components, this was also my best guess. However, getting to the magnetron is not the easiest job, but it's not impossible. You also have to be careful to bleed off any charge stored on the high voltage power supply capacitor. Luckily, I found my KitchenAid service manual tucked away inside the unit since I couldn't find it online.

My oven (late 90's/early 2000's model) didn't have the flip-down hinge locks shown in the video. It seems Whirlpool/Kitchenaid changed the hinges even though they didn't change the model number of the oven. With my style hinges, you have to put Allen wrenches or bent nails in the holes just behind the hinge pins. Then close the door almost all the way and lift it out to separate the hinges. Spring force holds the nails in tightly until you replace the door. This video was very helpful:
https://www.youtube.com/watch?v=p7oRZdIN6m0

Also, my door had 3 different kinds of sheet metal screws. Two of them have similar heads but different threads. Keep track of which is which for when you put everything back together.

Cut the power. Undid the screws to the element. Popped off the old element replaced with new,put screws back in turned power back on and Shazam it was up and going

After 22 years the oven stopped heating in the middle of a meal prep. The fault code was F3 oven temperature problem. I googled the codes and found PartSelect described the problem and the repair and part needed. I received the oven sensor part, then turned off the power, used a screwdriver to remove 2 screws (had to find the right size flat head screwdriver to fit the square holed screws and they were pretty baked on after 22 years of use), gently pulled the sensor and wiring through the back of the oven. I used a needle-nose plier to pull the plastic connector through the insulation, then unsnapped the connector, snapped in the new sensor connector and pushed it back through the oven wall. Pretty simple repair, took me longer to find the screw driver than the actual repair.
Thank you PartSelect for making it easy and saving me a repairman visit!

Thanks to video provided by PartSelect the repair was fast and easy. My second experience with an appliance repair with parts and video from PartSelect. I am a happy customer.

Well, the instructions on the computer site were very easy to understand, however, the difficulty lay in the fact that we were 2 78 yr old people and getting to the inside the oven, lifting up the element so that we could see where it should be connected and get it connected was a task. We had to get down on our knees and then get back up. That was a chore within itself. But, the instructions were easy and clear.
Bottom line if us old people can do it, anyone can.