I have a lovely fp-5 that I refurbished years ago. I replaced all of the pads and many of the keys and it played like a dream.
Unfortunately my cat knocked a potted plant and a bunch of sand in to the keys and now the sustain is always on. I’ve taken apart the piano and cleaned the innards out and yet the problem persists even when the pedal is unplugged.
I’m trying to figure out what parts I might need to replace to get my piano up and running again!
Would love any sort of input.