Hi guys,

I own a Uniwell UN1315 (Ancient I know but a quality till!) and I have a problem with one of the buttons. Everytime you sign in as Clerk and press this button, which is for a Coca Cola, it lets out a constant error sound or ring but no error message on screen. The screen is blank with just the small symbol for signing in at the bottom. To stop the error sound you have to press clear. Ive tried changing the price/plu name and everything to try to get it jump started again but no joy. Would it be locked by any chance? I have been using the operators manual but ive read a previous comment that their maybe a programming manual that may help? Any help what-so-ever on my problem would be greatly appriciated!

Thanks!

Connor