[HDowse]

Jim,
I have the same problem from time to time with my 1940 Deluxe starter button. There have been some threads here on this problem. One culprit is that the button is merely grounding the wire so if you have a poor ground at the button that can be the problem. I’ve had good luck with carefully spraying some electrical contact cleaner around the front edge of the button. A small shot seems to clean the contacts enough to make them work. I thought it was a faulty starter at first but could get an instant response from the button on the starter solenoid on the firewall.
Hunt