MH1150XMB0 Whirlpool Microwave - Instructions

Removed screws holding the broken grill tabs with a phillips screwdriver
Removed broken grill and all broken tabs that fell into the vent area
Cleaned area where the new grill was to be placed
Inserted new grill onto the appropriate tabs and tightened the screws

BE CAREFUL as the tabs on the grill are thin and fragile when you insert the new grill don't force it into the slots, I used a knife as a way to slide the grill into place.

removed the two screws, removed all of the broken tab pieces, replaced with new grill, put the two screws back.,....DONE Easy as pie

After reading other entries, I have determined this is a problem with most grills on the whirlpool microwaves. Defective material ..becomes brittle and crumbles.

Other reviews said this was an hour long project and rather difficult. Quite the opposite, this was a very easy project. Pried the old panel off with a flat head screwdriver, removed the old door handle from the inside, replaced the new door panel and glass and snapped it back into place.

It was a bit awkward because the microwave is mounted over my stove. I had to twist around and install the bulb and then replace the cover. It was a bit uncomfortable. It took me about 10 minutes to complete.

Put s pot under were you take the screw out.If you drop it you can get it easy

Removed the microwave from above the oven by loosening the two screws above the microwave. As the unit tilted outward lifted up and the whole unit came out all the time feeding the power cord through the cutout for the power cord. After it was out removed the cover and identified the capacitor and made sure it was discharged and removed and replaced the diode. tested before reinstalling and it heated up just fine. Reversed order and reinstalled . Very easy job maybe a second hand to help fish the power cord when installing and removing.

Searched on the internet for repair assistance and found YouTube video that helped alot.
Need to provide installation directions in the product.

Don't waste your time with other parts stores online. Partselect sells quality parts and they arrived 2 days early. I purchase a door switch from another online store and the switch was defective.

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.

Removed 2 screws from top of microwave. Place new grill in place. Replaced 2 screws that were removed. What was wonderful is I ordered the part around 3 pm on a Friday. The part arrived at 9AM the next day and that was without requesting special shipment.

Unscrewed the remaining pieces of bracket slipped in new vent cover and attached with the two screws. Very easy since the web site showed where the vent attached. I saved over $60.00 doing this repair myself!

Take off top facing over microwave using screwdriver also protection plate for diode and capaitor. Disconnect diode from frame, bracket to capacitor then remove, disconnect wires leaving diode on capacitor for right connection, replace, rewire done.

I removed the two screws and took off the old grill. Snapped the new grill in place and replaced the screws. This model was not shown on the list but the part fit just fine. The part arrived in 2 days! I ordered the white one and at first didn't think it matched .. maybe my microwave was bisque or almond .. but after 15 minutes of scrubbing I realized it was white but just real dirty .. lol. Now the door opens without the grill falling off. Easy fix.

I didn't have to remove the old cover since it cracked and fell off the microwave already. I simply snapped in the new vent cover, screwed in the 2 screws and I was done. Super easy.

Really easy for a 75-year old female; just spent more time reading the online manual than actually installing the light bulbs to find out where to access the light bulbs.