Re: Ariston A1535 stuck on program, wont advance,
If you move the control in the middle of a programme the dial will click right round to its original setting. You have to turn the control knob to one of the Off/Reset positions, wait for the mains neon to flash, switch off, then you can set the control to a different setting.
Do this then set it to a programme and make a note of which neons are coming on by number from left to right when, or if it fails to work.
Jim.