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KitchenAid Microwave

KitchenAid KHMS1850SWH

Model # KHMS1850SWH

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The KHMS1850SWH is one of the KitchenAid microwave ovens. No published specification for this model was recovered. What survives is the model number and a dated record of when KitchenAid was showing it, and that is what is set out here. KitchenAid’s US product site carried it from February 2014 to September 2015, and nothing was captured for it afterwards.

KitchenAid appends a production-revision code to the base number on the rating plate, and the codes actually observed for this model are KHMS1850SWH0, KHMS1850SWH1. A plate reading one of those is still a KHMS1850SWH; the suffix identifies which production revision you have, and it occasionally decides which version of a part fits. A KHMS1850SWH in use today is about a decade old, and the door latch, the interlock switches and the turntable drive account for most of what it gets called out for. Discontinued does not mean unrepairable, but it does mean availability of the specific part for a KHMS1850SWH is established before any figure is put on the job.

Key Features

  • No published specification for this model was recovered
  • Recorded on KitchenAid's US product site from February 2014 to September 2015
  • Rating-plate revision codes observed for this model: KHMS1850SWH0, KHMS1850SWH1
  • A KitchenAid owner's manual for this model is on record
  • KitchenAid published an installation dimension guide for it

Most Common Issues on This Model

01

Cavity paint worn through where dishes rub, which leads to rust at that spot

02

Keypad legends worn away with use, so the panel is hard to read

03

A door seal face damaged, which the oven can read as an interlock fault

04

A magnetron reaching the end of its life, showing as heating that has become slow and uneven

Error Codes Common to This Model

FC E8

KitchenAid Over-the-Range Microwave FC E8 Error Code (Registration)

Registration Error

KitchenAid Over-the-Range Microwave Registration Error Message

Flashing ":" or PF in display

KitchenAid Over-the-Range Microwave Flashing Colon or PF Display

F3T3

KitchenAid Over-the-Range Microwave F3T3 Error Code (Hood Temperature Thermistor)

F3T4

KitchenAid Over-the-Range Microwave F3T4 Error Code (Magnetron Temperature Thermistor)

F4E1

KitchenAid Over-the-Range Microwave F4E1 Error Code (Cavity Temperature Thermistor)

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FAQ

KitchenAid KHMS1850SWH FAQ

KitchenAid places the plate inside the door, so that is where the KHMS1850SWH label will be. Model and serial are printed on the same sticker. Getting the KHMS1850SWH number exactly right matters most on an older machine, where parts diverged between otherwise identical-looking siblings.

Then the job stops there and you are told. The KHMS1850SWH has been out of production for long enough that this is a real possibility on some components, which is why availability for a KHMS1850SWH is checked before a diagnosis is charged for rather than after.

That is typically a thermal protector reacting to a blocked cooling path. With the KHMS1850SWH unplugged at the wall, the external vents and filters of a KHMS1850SWH can be cleared, which sometimes settles it. If a KHMS1850SWH keeps stopping after that, the fault is internal and is a technician's job.

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