Dropped accoridon on ground. Bass makes sound without pressing any button.

[EvKey]

I dropped my accordion and the table side starts to have sounds without me pressing any button, the sound happens when I push and pull the bellow. I took off the cover and removed the bass mechanism and the problem stopped but come back (with more sounding reeds) after I put back the mechanism. The sound seems to be different every time I take of & put back the base mechanism. The mechanisms don't seem to have major damage, as observed by me, a novice accordion player.
I looked at common accordion failure modes and don't think any of the problems fit mine.
I am intrigued by the craftsmanship of the accordion after I opened it up and want to try fixing it.

• What are the common cause for this problem?
• What are the actions I can to troubleshoot?

I found this forum after I broke my accordion and started googling solutions. This is my first post. Hello everyone!

 

[godgi]

might not be the end of the world. i think u possibly need to start with whrre the mechanism is good and observe lever movements. lifting the appropriate pallets over the red block which u possibly cannot see. then go to where you have a problem and see can u chase the lever movements to identify the obstruction possibly bent lever or something. i am not an accordion repairer but i had a second hand hohner with faulty base mechanism and later i discovered via a y tube video how to possibly sort out. just an idea.
godgi

 

[Tom]

Welcome Every Key!

Godgi makes good sense. A bent lever or rod is a common problem with bass playing without pushing a button after a fall. Not sure what the cause is from taking the bass mechanism out and replacing it. Could there be something causing the bass button to not return to its home? Or maybe the pallets are being mis aligned?

More info needed! Maybe send pictures and or determine which sound it is. Is it a single fundamental bass note?

Good luck!

 

[Waldo]

Does a reed (s) sound with the bass mechanism removed from the case? If so, it's a pallet (or spring). If not, the problem is in the mechanism. Some of these assemblies are very delicate and the inertia from a drop could conceivably bend or displace a piston or actuating pin. The "leaker" changing with removal x replacement is a bit of a puzzle, but it is an accordion after all.
Be glad you have a "unit" type mechanism.