MH7140XFQ0 Whirlpool Microwave - Instructions

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

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

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!

Placed Grill and tightened screws. It was trivial and the part was perfect.

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

Husband replaced the bulb

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.

Unplug the microwave. Then remove the six screws that hold the lower panel which has the light bulb cover and a couple of vent filters. The light bulb sockets are on a fixture that is connected by a quick connect electrical connector. Disconnect that and the whole panel is free to access the bulbs. My bulbs were very fragile and trying to twist them out resulted in the glass twisitng loose with the base still in the sockets. I needed to use a needle nose pliers to remove the bases and then I replaced the bulbs and put every thing back together

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.

Looked up the Whirlpool Co. and ordered the part. It was quite simple. Arrived in 2 days and I simply placed it in the microware. It was very very easy!

E. Robinson

Simply removed two screws to remove the old vent grille and replaced it with the new grille. I was also very pleased with the assistance I received from the service rep. I had ordered the wrong grille. I called the PartSelect help number and the rep walked me through the product return process, then found the correct part and ordered it. I had the replace 3 - 4 days later. The rep was very polite and patient during the whole process.

It took me 15 minutes total - 5 minutes to clean the microwave, 1 minute to install three new parts, and 9 minutes to enjoy my celebratory glass of wine!

Opened door and put new plate in.

Placed order on Thursday evening and received Sat Am

I removed the two screws, removed the broken grill, popped in the new grill (after I ordered the correct color, did not get the biscuit color I thought I had ordered the first time) replaced the two screws....I was good to go. Strange that the tabs in the first place just fell apart...but reading others, find this seems to be a common problem. Simple as pie.