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pay unit err 17

Posted: Tue Apr 09, 2013 10:22 am
by maxwoof
hi

I got a mazooma knock out machine the other day and after playing with the wiring on the door switches I managed to get it off free play but it is now displaying pay unit err 17 the top hopper was full of silver 5ps,10ps etc which I have cleaned out, I switched it off and back on and its still displaying it.? am new to this so any help would be great thanks