MH3184XPB5 Whirlpool Microwave - Instructions

Ordered new part on Thursday night and new part arrived the following Monday. After unpacking I just snapped the new grille in place and the job was done. I was really impressed with the quick service that I received from PartSelect.

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.

Replaced the supports and rack.

Husband replaced the bulb

With new replacement grill, a separate clip was supplied in the box that had to be screwed in to the top portion. This clip did not fit since the hole for the screw was on the right side and not the left, so I just snapped the grill in place with the existing clips.
There must be another clip that fits this unit but perhaps the person packing the box grabbed the wrong clip and taped it in with the shipped box.

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

easy to replace, just the same as cleaning the turntable and placing back in the micorwave;

SO EASY... It just clipped right in...

Remove the two screws to the plastic vent strip at the top of the unit. That exposes a metal cover (upper right) held in place by two more screws. (Found that removing the screw holding the key panel in place and moving that out of the way made for more work room) Remove the metal cover. The HV diode (visible) on one end is secured to the chassis by a screw. The other end is fitted to the HV capacitor. So unscrew one end and pull the HV diode off the capacitor. The replacement fits on like the old one came off. Very simple repair. But it would be safe to short the capacitor terminals to the chassis first. Noticed that it appeared the sparking was caused by the HV diode's outer casing being worn by the asbestos covered wire next to it and laying against it. I made sure the two were not touching, before putting the covers back on. Also, the problem started with an occasional spark when the MW started. It quickly deteriorated to a full, non-stop electrical sparking. You can hear it, smell it, and see it through the top vent. You don't need to remove unit to work on it.

Loosened but did not remove screws that held up microwave over range,removed grill on top by loosening screws that held grill in place.removed small mesh grill on right side of microwave, this gave me access to capacitor ,diode is connected from one lead of capacitor to a metal plate ground,Disccarged capacitor to ground by shorting terminals to ground using a thick insulated screwdriver.Since the diode was screwed to the top of the metal plate I cut it out with a pair of side cutters .I then connected the new diode to the capacitor with my long nose pliers and groonded the other end to a more accessible part of the metal grounding plate.I then replaced all parts in reverse order.Works like a charm.

After removing the over-the-range unit (no small feat!) I had to figure out how to open the case (good puzzle!). Capacitor had already discharged, so it was very easy to reach in, pop the old fuse and install the new one! As per your advice, I found out I was a "28%-er"! Upon re-installation, the microwave "sprang to life"!! Thanks, "Part Select"!! I was already shopping around for a new machine! (Now if you could only tell me an easier way to re-mount this heavy beast over the stove!!!)

just snapped top in,
Service was excellent, could not get any better service.

Unpacked the replacement and popped it into place.