13-3078-23-02 Tappan Cooktop

Most of the job is simple fastener mechanics.
Use a nut driver or Phillips screwdriver. Remove rear panel.

Pull out control knob. If it is stuck, wrap a small rag around the back of it and pull the rag steadily.

Carefully match marked terminals on the replacement switch with those on original. Switch terminals ... Read more may not be in the same location. Replace wires one for one, one at a time.

Carefully select the correct knob filler for the switch post. Several are supplied. Proceed with logic and measure the shaft length and the filler length and type to match.

First of all I removed the top panel then removed the switch. I then took pictures of the switch & drew a sketch with all the info. Then I went to your web site, matched up the switch & ordered.
When the switch arrived I went thru the above replacing the bad switch.

First I unplugged the stove, and removed the upper-back panel. Then I pulled off the control knob. Then I removed the two screws holding the switch to the stove. Then one-by-one I removed the wires from the old switch and connected them to the corresponding tabs on the new switch. Then, using the knob adapter supplied with the new swi ... Read more tch, I figured out how much of the knob shaft I had to remove from the new switch to position the knob the correct distance from the face of the stove. Then I tested the switch with a voltmeter as instructed, and then I hooked up the last wire.
Partselect.com is an awsome website!!! I was able to review comments form other do-it-yourselfers that had similar problems. Then I looked up the Partselect schematic drawings of my stove and was easily able to find and order the part I needed. The part arrived at my house within a couple of days and I had the stove fixed in no time.