YWMH53520AH0 Whirlpool Microwave - Instructions

Turn off power supply at breaker . Replace old bulb with new bulb .

Part of the support was missing. I had to remove the two switches and put them in the new bracket
Had the switches reversed and started blowing fuses. Reversed them and changed the fuse and it started working.

We needed a phillips head screw driver to remove the single screw holding the light bulb cover in place.
Removing the old bulbs was a little work, because they had come loose from the sockets. We unplugged the microwave, so we could grip the sockets with a tool. I think my husband used a needle nose plier for this.
The new bulbs screwed in easily, and then we refastened the light bulb cover with the phillips head screw driver.

Replacing the grill is so ridiculously simple (two small screws) that it is hardly worth writing "instructions" for it.

However, ordering the right part is a problem. My microwave has a stainless steel exterior but on your parts list there is no part clearly identified as such. Only black and white. Then there's one for which an "image is not available" so I figured perhaps that might be it. However I received the white part in the mail.

I then enquired if the part with a stainless steel exterior was available, or just its broken plastic base so that I could transfer the stainless steel wrap from the broken piece. The white plastic part that I received does not have certain slots to attach the stainless steel wrap.

However, you merely confirmed that the part I received was white so that was not very helpful. I installed the white part and it looks absolutely horrible on top of a stainless steel oven but it is what it is. But not too happy with your service and website to be quite honest.

I removed the broken tray and ring-turn and replaced it with the new
Service was fantastic, parts were ordered one day and received the next

screwed in new bulb

Washed the glass tray and put in the microwave oven. Easy..

Rep knew exactly what I needed when I described where the part should go on my microwave - price great - shipping great - installed in seconds. Thank you!

Spouse just screwed in the new bulb and reinstalled the light cover plate with the two screws. Took under a minute. Works great.

I ordered another one and placed it inside the microwave. It works and fits perfectly. I received the order exactly as scheduled.

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.

Husband replaced the bulb

Repair unsuccessful because they sent the wrong part, even after I questioned their selection. It is amazing how a company as large as Whirlpool cannot clearly indicate to the people who work for them how to order the correct part. The fault lies not in the individual who is putting the order in but with the company who cannot take the time to make sure that person is successful in completing their job. Will never buy a product from this company again.
As far as the shipping is concerned. It took forever, just to find out that the part was incorrect.
Better luck next time. right?

Removed turntable
Place support ring in track
Place turntable on support ring.
Easy, peasy!

On top front of the microwave are two Philip's head screws holding the rail on. Remove these screws and the rail snap out the old filter (noting the dark side down) then snapping the new filter in. Replace rail. 10 to 15 minute task.