Models > KHMS155LSS4 > Instructions

KHMS155LSS4 KitchenAid Microwave - Instructions

All installation instructions for KHMS155LSS4 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 KHMS155LSS4
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broken

  • Customer: Donald from Pompano Beach FL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 1 people found this instruction helpful
put the turntable in and had a Rum and Coke to celebrate. Your service was GREATTTTTT...

Foreclosed home: parts were missing

  • Customer: OLIV from OAKLEY CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 2 people found this instruction helpful
Having the correct model number helps:
Just place the parts in the microwave and it worked.

My microwave began suddenly making a loud humming noise while cooking food.

  • Customer: Lindsay from Nampa ID
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Nutdriver, Screw drivers
  • 51 of 155 people found this instruction helpful
My microwave began suddenly making a loud harsh humming noise while cooking food. I did not let it go on long enough to know if it cooked the food or not. I did some Internet research and learned that it was likely the Magnetron. The test for this was to run the microwave for at least a minute on the lowest power setting and see if the noise cycled on and off. It did, so I (actually, my wife) ordered the part from partselect.com using the model number. I was successful in replacing the part, and we are back to microwave popcorn and quick defrost for a price that was less than a service call, however, it was time consuming, required a large work area, and access to 5 out of 6 sides of the unit. So proceed at your own discretion

Caution:

The first thing in every set of repair instructions was to discharge (short-circuit) the capacitor, as it may store large (as in lethal) amounts of electricity even when it is not connected to a power source. I had never done this, but found these instructions:

“Discharging your microwave's capacitor is absolutely essential in preventing injury to your microwave, your tools, and yourself. A capacitor stores a large amount of electricity even when your microwave is unplugged, and it must be discharged before beginning any repair.
A capacitor is discharged by creating a short circuit between each of the two capacitor terminals, and between each terminal and the chassis. The chassis is the metal mounting (bare metal surface) of the capacitor. Read these directions thoroughly before you proceed.
With your microwave unit unplugged, touch the blade of a well insulated screwdriver to one terminal. Gently slide the screwdriver forward until it reaches the other terminal, holding it there for a few seconds. Be aware that this often results in a loud and startling 'POP'.
Repeat this procedure in order to create a short circuit between each capacitor terminal and the chassis (bare metal mounting plate surface). This same method can be applied to a capacitor having three, and not two, terminals.”
I had not run my microwave in over a week, and then while my part was shipping, left my microwave 'unplugged' for more than two days, and my capacitor apparently discharged itself, although I did go through the above procedure carefully and completely - just in case.
Step-By-Step:
1. You must remove your microwave from the cabinets - it is impossible to repair otherwise. This is best accomplished with 2 strong people - my wife and I made it work, but wished for another guy.
a. While supporting the microwave, remove the two screws coming down through the cabinet above.
b. Lift the rear of the microwave as much as possible, then tilt the front down - there is a clip high on the left side, as well as the hinge/clips on the bottom.
c. If you do not lift it off the wall all at once, you may have to lift the rear even farther to remove it from the hinge/clips on the bottom.
Important Note: Always beware of the microwave door, if it is bent or broken and cannot retain a seal, the microwave not function as a safety feature to keep from releasing microwaves.
2. Remove the vent cover on the top/front of the microwave - be careful, it's plastic.
3. Remove the vent cover and light panel on the bottom of the microwave - this is several screws and some simple wire clips.
4. Remove the "shell" (top and sides) of the microwave - this is several more screws on the back. Make sure to remove the plate that is holding the cord in place on the top.
5. Remove the interface panel by the screws on the top (which had been hidden by the vent cover) - the wires can remain attached, just slide it aside.
6. Remove the metal cover on the right side at the rear; this will expose the Magnetron and the Capacitor. Remember to immediately test and discharge the capacitor!

7. After you discharge the capacitor, remove the other cover plate and the support bracket - in case you haven't noticed, this is a time and space consuming operation.

8. You

The microwave door would not stay latched, so it wouldn't come on.

  • Customer: George from Maceo KY
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers, Screw drivers
  • 1 of 7 people found this instruction helpful
The repair was easy, I just took off a few screws and found the broken latch spring. The real story is how easy it was to find the replacement spring from Partselect! I couldn't believe they had it, and even better yet, I ordered it one afternoon, and it came the next day with normal shipping! Unbelievable! Then I just popped it in and replaced the covers I had removed and it was working again!

had none

  • Customer: Ingrid from Roseburg OR
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 1 of 7 people found this instruction helpful
found info on the internet how to install it. No problems replacing the part.

light bulbs nedd to repace it.

  • Customer: Jorge from Bay Point CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 18 of 93 people found this instruction helpful
Took the the want burned out , and put the new ones.

Broken plate

  • Customer: JASON from ABSECON NJ
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Took the replacement plate out of the box and put it in the microwave in seconds. I never realized how much of a difference having the correct microwave plate would make. It's great to have it back.

Did not have a mounting plate with our used microwave

  • Customer: Megan from Elverson PA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
My husband just installed the mounting plate on the wall and the microwave was placed in position and mounted in less than 5 minutes.

Microwave was making a grinding sound

  • Customer: William from Huntington Beach CA
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Problem was easily diagnosed using the internet as a resource, problem was a bad stirrer motor. Hardest part of the repair was the removal of the microwave. Once off the wall, you remove the outer cover and a molded plastic casing directly underneath the outer cover at the top of hte microwave to expose the stirrer motor. Removed two screws and two wires and the old motor is out. Did exactly the opposite to install the new motor. The kit I recvd included among other things the motor, a new inside cover, plastic rivets and even silicone to seal the inside cover. I am sure I saved a couple hundred dollars by doing myself.

LIGHT BURNED OUT

  • Customer: Patti from Coarsegold CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
FOLLOWED THE INSTRUCTION BOOKLET THAT CAME WITH THE MICROWAVE. VERY EASY.

it was working fine and it stopped order a fuse and it wasn't the problem

  • Customer: Herb from Auburn IN
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required:
  • 0 of 0 people found this instruction helpful
took it to Buttermore appliance in Auburn Indiana and he changed the fan and added another fuse

Replace vent grill

  • Customer: Timothy from Lithia FL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Installation was very easy and only took about two minutes. I am extremely pleased.

The glass tray in the microwave got chipped while i was washing it and started to crack.

  • Customer: Amber from Loretto PA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
I just opened the box and set it in. Took all of two minutes.

Replacement

  • Customer: George from Statham GA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Easy, perfect

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.
All Instructions for the KHMS155LSS4
46-60 of 87