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Sample Model Number Tags
Model numbers can be made up of numbers (1005400, for example) or a combination of letters and numbers (LAT1000AAE). The model number will most likely appear on either a paper sticker or a metal plate. Your appliance's model number tag may look similar to the sample model number tags shown here (model number highlighted in yellow):
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This 40w light bulb is a replacement bulb constructed of glass and metal. It is an easy-to-install electrical part which produces 40w of light. If the bulb won't light up then it may be broken and sho...
This Charcoal Filter traps grease from your oven's exhaust to help prevent it from entering the vent, which could cause damage over time. If the exhaust fan on your microwave is not working, you may n...
This Grease Filter is constructed of Acrylonitrile Butadiene Styrene and is used to trap grease and help eliminate odors from the exhaust air while cooking. It attaches onto the exhaust and is rated ...
This a genuine OEM microwave cooking tray. It is also known as a microwave turntable or microwave plate. The function of the tray is to hold and rotate food items while the appliance is in use to ensu...
This microwave surface light bulb (120v 25w) is an OEM replacement part used in microwaves and microwave/hood combos. It is one of the two halogen lightbulbs that are positioned on either end of the b...
This turntable ring in your microwave makes sure that your glass tray rotates smoothly. Located just above the internal floor, it supports the tray so that your food cooks evenly. A broken turntable r...
This mounting plate is sourced directly from the original manufacturer for use with microwaves. It is a metal plate designed to support a microwave by attaching the microwave to the wall studs. If the...
This three-terminal switch fits your microwave door. This part is mostly black in color and is about 1.5 inches with metal terminals. You might need to replace this part if your microwave is not heati...
This door interlock switch is a genuine replacement part designed for use in microwaves. It serves a critical safety function by preventing the microwave from operating when the door is open. Because ...
This diode, or high voltage diode, is used in microwaves. It is an electrical current control device that ensures power flows in one direction and not the other way. If your microwave produces no heat...
If your microwave is not turning on it could be due to your fuse needing to be replaced. This part protects the microwave by shutting it off if there is an electrical surge. This fuse is just over an ...
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5 questions answered by our experts.
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Richard
December 26, 2019
How do i change the grease filter ?
For model number KHMS2040BSS0
Hi Richard, thank you for your question. Here is a video that shows how parts like this are replaced: https://www.youtube.com/watch?v=OIrTyvy5kAc/. Good luck with your repair.
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Regan
January 28, 2020
For the interior and ventilation parts; the screw that holds 7 & 5 together fell behind my stove when i went to change the light bulbs. What size are they so i can replace? Thanks so much.
For model number KHMS2040BSS0
Hi Regan, thank you for your question. The part you are requesting on has been discontinued and we have no known replacement listed in our system. We have no further information. You are welcome to contact the manufacturer of the part to see if they have recently released a new substitute. This was the part number: 4393839. Good luck with your repair.
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Mike
January 13, 2022
Sometimes my interior microwave light does not come on, when this happens and I insert a heating time then press start nothing happens and a error message says open and close door then press start. This continues over and over, if I unplug the unit and plug it back in then sometimes the light comes on and it works. Do you know what is causing this?
Thanks, Mike
For model number KHMS2040BSS0
Hi Mike,
Thank you for your question. If the light inside your microwave is not turning on, the issue may be with the door switches. If they are malfunctioning or if they are out of alignment, then this would prevent the lights from turning on and the microwave from working correctly. You will need to inspect and test the switches to see if they are working. We have included a link where you may find information on how to check them. We hope this helps! If you have any questions, please let us know.
I am getting a message to change / clean the filters however I do not know if mine has a charcoal filter to change out or to just clean the grease filter. When I remove the grease filter I do not see anything resembling a charcoal filter. Can you help me?
For model number KHMS2040BSS0
Hello Nancy, thank you for your inquiry. The charcoal filter compatible with your model is part number PS1871363. You may follow the following steps to access the charcoal filter: use a Phillips head screwdriver to unthread the screws securing the front grill. With the screws removed, open the microwave oven door, slide the grill to the left, and lift it up to remove. This will allow you to access the charcoal filter. You may need to change or clean the filter to fix the issue. We hope this solves your problem!
Hello Larry, thank you for contacting us. Based on the description that you have provided, we would recommend checking the turntable motor, part number PS11755189, to solve the problem. We hope that helps!
The nightmare was that this microwave is installed under the cabinet....in order to get to the light bulb I had to pull out my stove then squeeze into the space between the stove and counter....my old microwave light bult was much easier to change.....Shame on Whirlpool for making this so difficult.....must be a better way to cover the li
... Read moreght bulb so that we do not need a screwdriver to remove the door to get to the light bulb
Ordered top & bottom micro-switches and mounting plate parts. Internet reviews could not find specifics if the issue was due to a top/bottom or combination of micro-switch or mounting plate failure. Pulled the plug. Removed the top vent assembly cover held in by 2 Phillips screws inside the vent. Removed the control panel held in by 1 P
... Read morehillip screw at the top vent assembly area. Lifted control panel upward to release the catch and moved it off to the side - didn't disconnect any leads. Used a Torx bit to remove the door switch mounting plates at the front and pulled the plates through the opening from the control panel. Documented the wire color code connections, the top plate uses 2 micro's with one using both the closed & open contact. Installed the respective micros on the mounting plates and worked backwards with the wiring and removal steps. Once completed, the open/close sensing has worked every time.
