My ADP1520 double ring won't switch off?
My ADP1520 Ceramic hob works perfectly for months, then the double ring decides to stay on. I've tried switching off and on, changing the temperature, switching off and on at the mains, but nothing will persuade it to switch off. I've found that leaving it overnight sometimes works, at other times it just repairs itself. What can I try next?
Puzzled pensioner
March 2011