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Model library · KitchenAid Microwave

KBMS1454B

KitchenAid KBMS1454B Microwave Oven Repair

Schedule Service(713) 903-2606
KitchenAid microwave

Most common issues on this model

  1. A control board aged by heat and grease vapor, with settings that vanish or programs that quit
  2. A matted, greasy cooling-air path that overheats the cabinet and ends cooking before the timer does
  3. A brown scorch on the waveguide cover where splatter has burned
  4. Paint worn off the cavity floor, leaving bare metal that rusts

Does your KBMS1454B quit halfway through a program? Ovens do that when heat builds up and the thermal protection steps in, and grease choking the cooling fan path is the most common reason. It is sold as the KBMS1454BBL, KBMS1454BSS and KBMS1454BWH.

We open the cabinet and follow the airflow. Dust and grease form a felt-like layer on the fan blades and the vent slots, and a motor fighting that layer cannot move enough air. Clearing it often restores normal running. We also look at the waveguide cover, because a scorched mark there means arcing has begun and the cover must be replaced.

The control board gets tested last, as heat and grease shorten its life. A written price comes before we start, and a 30-day workmanship warranty covers the repair.

Key features

  • Base model KBMS1454B
  • Microwave oven category
  • Versions KBMS1454BBL, KBMS1454BSS and KBMS1454BWH
  • Rating-plate revision code seen: KBMS1454BBL0
→Codes

Error codes this model can show

Probe or Insert ProbeKitchenAid Combination Microwave Message "Probe" or "Insert Probe": Seat the meat probe in its jack PUSH or PSHKitchenAid Built-In Microwave Message PUSH or PSH: The oven is waiting for Start Registration ErrorKitchenAid Over-the-Range Microwave Message "Registration Error": Check the home network and try again Sabbath, Sab, 5Ab, or 5A6KitchenAid Built-In Microwave Display Sabbath, Sab, 5Ab or 5A6: Sabbath Mode is on SEKitchenAid Over-the-Range Microwave Code SE: Keypad or user interface problem F4 E8KitchenAid Combination Microwave Code F4 E8: Inverter or its wiring flagged F9KitchenAid Over-the-Range Microwave Code F9: Two boards and their wiring are suspect ":" or "." in displayKitchenAid Built-In Microwave Display ":" or ".": The clock needs setting
KBMS1454BKBMS1454B questions
My KBMS1454B stops mid-cycle and then restarts later. Why?

The oven is likely overheating and shutting itself off to protect its parts. We clean the fan path and vents, test the fan motor, and check the thermal protector before touching the board.

There is a burn mark inside the cavity wall. What is it?

That is usually the waveguide cover, which is a thin sheet that can scorch when food splatters build up. We replace it, and advise wiping the cavity regularly.

Can grease reach the board?

Yes, over the years it works into the control area. We inspect the board for residue and corrosion and clean the area while the oven is open.

Book a visit

Book repair for your KBMS1454B

Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

(713) 903-2606
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