Introduction: KitchenAid KMT422CU 4-Slice Toaster Buzzer Removal and LED Modification

This guide applies to all KitchenAid KMT-422 series toasters equipped with a buzzer and manual toaster levers.  The guide will provide thorough instructions on how to safely remove the buzzer.  It will also include optional instructions for installing an LED in place of the buzzer, so that the notification feature is preserved.

The buzzer is being removed because it is extremely loud and unnecessary.  This feature makes a potentially great toaster too annoying to use.

For a video guide that accompanies this written guide, go to:

For part 1:
http://youtu.be/L1TI50HGppI

For part 2:
http://youtu.be/r1IxzexwKcI

Step 1: Tools

Tools required for removing the buzzers only:
1.  Needle-nose pliers
2.  Phillips screwdriver PH2 size
3.  Security bit, U-head size 3.0 or equivalent (this tool can also be home-made by grinding a notch into a flathead screwdriver)
4.  Soldering iron and peripherals (solder, sponge, stand etc, see this guide if you do not know how to solder)
5.  Soldering wick or solder sucker

(Optional) Additional tools required for installing the LED:
1.  4 pairs of male and female disconnects 
2.  2 LED holders
3.  22 AWG stranded wire- about 2 feet, preferably in red and black/blue
4.  2, 5mm LEDs
5.  2, 180 Ohm 1/4 Watt resistors
6.  Heatshrink, assorted
7.  Heat gun or lighter
8.  4 inches solid core jumper wire
9.  Wire strippers
10.  Optional but highly recommended: Helping Hands
11.  Deburring tool or file
12.  Wire cutters