KHMC1857WSS0 KitchenAid Microwave - Overview

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Light Bulb - 40W – Part Number: 8206232A
$10.49
In Stock
Light Bulb - 40W
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Part #8206232A
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 should be replaced. The bulb attaches directly to an appropriate light socket and has a small screw-in base. To access the exterior light bulb, you will need to remove the panel on the bottom of the microwave using a Phillips screwdriver. If your exterior light bulb has not been changed before, it is probably held in place with some silicone. You will need to cut away this silicone to remove the old bulb. If you cannot access the silicone with a utility knife, it can be removed using dental floss. Once the silicone is removed, simply unscrew the old bulb, and replace it with the new one. Be sure to disconnect the power to the microwave before you begin this repair. This light bulb measures about 1 1/8 inches. We do not recommend using a higher-wattage bulb for this appliance, and can only recommend this specific bulb. If fixing the bulb does not solve your microwave light issue, it's possibly a problem with the socket, which means the socket and/or board will need to be replaced. This can be a more dangerous repair, so consult your user manual or a technician before attempting.
Charcoal Filter – Part Number: 8206230A
$20.85
In Stock
Charcoal Filter
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(35)
Part #8206230A
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 need to replace your charcoal filter. This charcoal filter is located within the intake grille of your microwave, which will need to be unscrewed and opened to gain access to the filter. The manufacturer recommends that you change your charcoal filter every six months. This filter measures 5 inches by 5.375 inches by 0.375 inches. Be sure to measure your current filter to assure correct replacement. This product is sold individually. We recommend the use of gloves during installation to protect your hands from messy grease during your repair. You should also unplug your appliance at the electrical outlet or switch it off at the breaker. Using a Phillips screwdriver, unthread the screws securing the grill. Open the door and slide the grill to the left and lift it up to remove it. This will allow access to the filter so it can be either replaced or cleaned. Remember to insert the tabs of the grill into the frame and slide it to the right when you are done. To finish, shut the oven door and secure the grill with the screws.
Grease Filter – Part Number: W10208631A
$36.25
In Stock
Grease Filter
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(54)
Part #W10208631A
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 as easy to install. The part is 12 15/16" x 5 3/4", and comes in silver. Refer to your make and model number to ensure this part is right for you. If the exhaust fan of your appliance is not working, this part is the most likely cause. This part is sold individually, and it should be noted that many microwaves require two filters, so you may need to replace both at the same time by purchasing two of this part. You should consider gloves during this simple repair (which requires no tools) to save yourself from getting greasy hands.
Glass Cooking Tray – Part Number: 4393799
No Longer Available
Glass Cooking Tray
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(28)
Part #4393799
This tray is rotated when the microwave is turned on.
Microwave Surface Light Bulb – Part Number: W10709921
$27.45
In Stock
Mounting Plate – Part Number: W11025649
$28.90
In Stock
R Ceramic Fuse 20 A – Part Number: W11707984
$47.21
In Stock
R Ceramic Fuse 20 A
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(12)
Part #W11707984
This part protects the microwave by shutting it off if there is an electrical surge.
DIODE – Part Number: W11256462
$38.45
In Stock
DIODE
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(4)
Part #W11256462
This part allows power to go one way but not the other.
Microwave Door Interlock Switch – Part Number: W10269458
$43.12
In Stock
Microwave Door Interlock Switch
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(3)
Part #W10269458
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 proper operation of the microwave’s shielding and interlock system is essential for user safety, this part should be installed by a qualified service technician. After installation, the interlock switches and microwave shielding must be thoroughly tested to ensure the appliance meets safety standards.
Microwave Damper – Part Number: W10843943
$91.76
In Stock
Microwave Damper
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(5)
Part #W10843943
This assembly includes the damper door and frame.
Microwave Turn Ring – Part Number: W11252182
$52.79
In Stock
Microwave Turn Ring
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(8)
Part #W11252182
This support ring sits underneath the glass turntable tray.
Microwave Top Mounting Screw – Part Number: WP8169704
$14.02
In Stock
Microwave Top Mounting Screw
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★★★★★
(1)
Part #WP8169704
This screw is sold individually.

Manuals & Care Guides for KHMC1857WSS0

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Questions And Answers for KHMC1857WSS0

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Kevin - For model number KHMC1857WSS0
March 10, 2020
Do you have the waveguide cover for this model? Do you know if the universal covers that you can cut to size will work with model?
Chris Boyle Profile
Hi Kevin, Thank you for your question. The part number listed under your model number for the waive guide cover is PS2378299. To place an order for the part you may order it either online, by visiting our live chat sessions, Monday to Friday from 8AM to 4PM EST, or by calling our customer service line at 1-888-738-4871 and anyone will be happy to assist you. We hope this helps. Thank you and have a great day.
No Longer Available
Wave Guide Cover
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Wayne - For model number KHMC1857WSS0
November 26, 2021
On right wall there is a cover 5-3/4 by 2-3/4 with 4 screws it has arching on it honey got on it
Chris Boyle Profile
Hello Wayne, Thank you for your inquiry. We have researched the model you have provided and have found the part you are looking for is the wave guide cover. We hope this helps.
No Longer Available
Wave Guide Cover
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Scott - For model number KHMC1857WSS0
February 16, 2020
When turned on sparks fly on the inside ride side on what seems to be a piece of coated cardboard the has 4 screws holding it in?
Chris Boyle Profile
Hello, Thank you for your question. I am not seeing anything that seems to be cardboard inside your unit. I would recommend reaching out to the manufacturer directly and verify that piece is supposed to be inside your appliance. If it is sending sparks, usually that means the unit is no longer functioning properly and may need to be replaced, or the piece you are referring to has some sort of metal. Good luck with this repair.
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Kris - For model number KHMC1857WSS0
August 13, 2021
I notice that it steams up too much inside when cooking. Occasionally i get the message to clean filter. I clean the one on the bottom. Is there another on the top or another location? If so, where do i buy it? Thank you!
Chris Boyle Profile
Hello Kris, Thank you for writing. We have researched the model you have provided and have found that there are two filters. Two are required for the grease filters. We have both on our website. The Charcoal Filter is PartSelect Number PS1871363 (TOP). The Grease filter is PartSelect Number PS3650910(BOTTOM). We hope this helps.
$20.85
In Stock
Charcoal Filter
$36.25
In Stock
Grease Filter
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Common Symptoms of the KHMC1857WSS0

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broken glass turntable
404 of 421 people found this instruction helpful.
  • Deborah from Baltimore, MD
  • Really Easy
  • Less than 15 mins
No repair- just replaced glass turntable.
Right part I needed with first try
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light bult needed to be replaced
222 of 329 people found this instruction helpful.
  • Deborah from Millersville, MD
  • Difficult
  • Less than 15 mins
  • Screw drivers
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 ght bulb so that we do not need a screwdriver to remove the door to get to the light bulb
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While attempting to get some from the cabinet above my microwave, a guest accidently pulled on the top grill vent and caused the plastic screw tap to crack and break leaving the grill vent hanging.
91 of 102 people found this instruction helpful.
  • Susan K from Lacey, WA
  • Really Easy
  • Less than 15 mins
  • Screw drivers
I first went back Lowe's where I purchased my microwave in the hopes they would help in the ordering of the grill vent for my mircrowave. They advised me that they do not order parts and gave me a card of a company to call to order the part. I called the number on the card and was left on hold for 20 minutes then instead of helping me wit h the part I needed they proceeded to set up an appointment for someone in my local area to come to my home, order the part the later install. I knew that it was just 2 screws and bottom snaps to install and I didn't want to wait a week for someone to come to my home. I then went direct to the Whirlpool web-site and found "Partselect.com". I was unable to match my model# even though my microwave was only 13 months old but knew it was probably interchangeable with another so I then called "Partselect.com" and was just amazed at how helpful and knowledgeable the gentleman on the other end was. He found my part and was very patient in describing it to me to assure that it was the correct one. I was on the phone less than 10 minutes with him. The part came in 3 days and was the correct part:) It took me less than 5 minutes to gently snap the 2 bottom tabs in and screw in the left and right tabs on top. Thank you so much "Partselect.com" for making what could have been a timely and expensive part replacement be so very simply and inexpensive.
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