Two of these known to the owner of this one have shown the same symptoms,
but never connected together in any way.
The other one apparently corrected by a factory reset (coincidence?)
At switch on the display continuously scrolls as though one of the up or
down bank select pedals
is active, ie looks like the action of someone continuously turning the
rotary encoder switch.
Have taken apart but not reassembled yet , unenclosed .
Only 0.2mm differentiating first touch to click over of the very basic click
switches under all the
foot pedals. The "wah-wah" switch is different action. Is it a stock fault
of deflecting steelwork/pivot wear/bending pcb/expanding soft inserts?
causing engagement of these switches, then just washer packings to correct
for a short time until the problem re-emerges) or something more
electronic/software or internal rotary encoder problem