I know this has been discussed in the past, but it was some time ago & I don't remember what was said.
I have an accordion where a few of the flappers stick open in high humidity... such as we've been having in our area the past few weeks. Does anyone know any remedy for this? Thanks, Tommee

Tommee, sounds like your rockers need to be sanded a bit. When they were originally fit they might have been fitted a bit to tight. You'd have to remove the fingerboard, springs and then the pivot spline and then sand the sides of the rocker down just a tad on some 220 and put it all back together. This should fix your problem.

I more cases than not, the cause of a button "sticking" is either the button is "jamming" against the hole, or the hole through the button block is swelling closed, causing the wood to grab the metal rod that goes through the keyboard.
If it's the later, you really need to let a builder do the repair.
Jude

Hi Jude,

Thanks for the insight on that.

I have had the first problem, that of the button sticking in the hole of the keyboard. I fixed it by very carefully enlarging the hole just a tiny amount using an x-acto knife. That was the suggestion of the builder, and it worked.

I didn't know about the second type of problem you described.

-David

It doesn't happen very often, but I have seen it.
happen. I remember it once happened that a friend of mine was playing on a hot summer night, and a drop of sweat fell onto the keyboard, and almost immediately,
one of the valves stuck open. I have some other "war stories" but I think you get the idea.
Jude