Models > KHMS1850SSS1 > Instructions

KHMS1850SSS1 KitchenAid Microwave - Instructions

All installation instructions for KHMS1850SSS1 parts

These instructions have been submitted by other PartSelect customers and can help guide you through the microwave repair with useful information like difficulty of repair, length of repair, tools needed, and more.

All Instructions for the KHMS1850SSS1
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visible sparking inside top of MW unit

  • Customer: Robert from Charleston SC
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
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.

Over Tightened screws cracked mounts on grill

  • Customer: Stephen from Silver Spring MD
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Replaced--tightened. Work involved--tighten two screws. The diagrams provided by your site were excellent. Delivery time was faster than expected. Don't usually bother with endorsements. But good job--keep up the good service--its appreciated--when something works the way it is supposed to.

I noticed that the hood lights were out.

  • Customer: linda from brockton MA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I took off the glass panel underneath the microwave and replaced the 2 bulbs in less than 3 minutes by myself with only a phillips head screwdriver. I was very pleased with the service I received and more pleased with myself that I did not have to call in a repair man.

Microwave turns on but did not heat

  • Customer: John from Port Saint Lucie FL
  • Difficulty: A Bit Difficult
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
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.

The old grill cover fell off and broke.

  • Customer: ANTONIO from HOLLYWOOD FL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Used the new parts, they were a perfect match, I completed the work in 5 mins or less. The pictures provided were very helpful, and parts were delivered very fast. Price was the lowest too!!

machine was dead.

  • Customer: Mark from Smithtown NY
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
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!!!)

Vent grille fell off the microwave

  • Customer: Dan from Ann Arbor MI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I noticed on some of the installation instructions provided by others that numerous individuals have experienced the same problem. I decided to try to lengthen the life of my repair and so I added an aluminum screen patch and some expoxy glue to the tabs that hold the screws. I figured that this might provide some additional strength to the grille and hopefully I wouldn't have to repair it again. Time will tell if this modification will be successful.

Broke a 15 year old glass cooking tray

  • Customer: Stephanie from La Jolla CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Ordered the item on a Monday at 12pm and it arrived the next day. Amazing!

glass cooking tray droped and broken

  • Customer: janice from dunn NC
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
just replace need cooking tray

broken cooking tray. Food not heating evenly.

  • Customer: James from Winter Park FL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Simply placed new dish on the rotating hub.

A glass fell out of pantry onto glass tray and broke it.

  • Customer: Al from Torrance CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
I called the repair/parts number to make sure I had correct parts and the young lady instructed me as to the size of the serving tray; within 48 hours we had the VERY carefully wrapped carton opened and back in the microwave, working perfectly. Thank you. We'll recommend you to our friends!

OTR microwave oven was missing the installation bracket

  • Customer: Rich Dudding from Miami FL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I followed the manufacturer's installation instructions. Everything worked perfectly.

Glass cooking tray for microwave cracked.

  • Customer: Sharon from Kannapolis NC
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
All I had to do was lay the new tray in the microwave. Easy as pie. Also, the new tray arrived very quickly.

No Heat / sparks

  • Customer: Robert from Red River NM
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers, Socket set
  • 0 of 0 people found this instruction helpful
This is an over stove top mounted oven. Remove oven from mount and place on a work surface with padding to support the lamps and vent holes. Strip the case off and locate the noted other "most likely" parts. Watch out for the Capasitor. Read the test note available for each part; Diode, Thermister Fix, Capasitor and Magnitron. Do the test checks. My issue wasn't obvious because I think the Capasitor was discharged and needed to be hot to check the Magnitron. (I'm not an electrical engineer so...) At this point I did the foolish thing...I plugged the unit in and ran it. Watching from a distance I saw sparks fly from the top side of the Magnitron with the same result from my cup of water (cold-no sprks here.) I replaced the diode and tried again, same result. I ordered the Mag and the Thrmst-Fix. Thrmst-Fix was on BO when the Mag got here so I installed the part. Had to remove several pieces to afford room to work and still had to stretch and pry to get the old out and new in. Mag is held in place with Torx screws so check that before you start. No other tool works. Mag was the problem for this unit. Some problems encountered: Parts and pieces were quick in arriving as long as they were not Back Ordered. Be careful to follow a thread for your product to order parts. These review/instructions are mixed for simular appliances and sometimes lead off to other part lists and numbers. Prices differ from model to model, list to list and the part numbers change. Go back to your product and then trace for the correct parts. I noted a $40 price dif.between Magnitrons from simular part lists. When you receive the part check to match the part numbers, Manuf. no. are different from the Part Select No. but can be crossed. Otherwise using this site's instructions, checks, insulated tools, big rubber gloves and a face shield I managed to save a $600 machine from the junk pile. Parts as ordered were recieved and return of un-touched parts were accepted by Parts Select without unexpected hassle. Thanks for a positive experience.

Missing bracket for mounting microwave oven

  • Customer: Timothy from Reno NV
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Attached bracket to wall with screws and hung microwave oven. Very easy project.
All Instructions for the KHMS1850SSS1
46-60 of 69