Hello
We have a Yale forklift i believe its a model gl 35. The units display screen was no longer legible so we ordered a replacement from Yale for the exact model. We installed correctly and everything lights up but it won't start and the display screen has ????? Next to the hour glass. I can't seem to get past this point and i was wondering if there is a way past this or does this need programming. Yale did not mention this when we purchased the part. I hope this is enough information and i appreciate everyones time.