johnstump_organist wrote:I assume the switch in in the capsule is stuck on.
On your Pedalboard, when you unscrew the rear panel to see all those little circuit boards, each containing a Magnetic Reed Switch for one Pedal Key... you may find a few spare Switches taped on there, intended for use as a replacement.
Somebody who is comfortable with soldering electronics could remove the questionable Reed Switch from the relevant circuit board (once that board has been unscrewed and freed up from the frame of the Pedalboard). And solder the new switch into place... assuring same orientation and connections as the original.
Good luck!
Another thing to look for would be a possible excess of soldering flux on the Board. I saw such a problem once, and the "short circuit" was resolved by scraping a gap into the excess flux with my fingernail, and then scrubbing that part of the Board with alcohol on tissue paper... being careful not to damage anything in the process!