Can also be insulation failure elsewhere in the cooker, or even in the wiring to the cooker, triggered by a temperature rise... ...I'd stop using this cooker!
As it's not just one ring causing the trip, I'm doubting an element fault.
Edit: Duh, you can only use it for 30 secs anyway!
[This message has been edited by gideonr (edited 09-15-2005).]
