On a whim I looked on a well-known on-line retail site - named after a South American river where the one breasted warrior women used to live - in Brasil
They offer dualit timers would you believe?
Good Luck..., September 2015
Is it possible the popup is what switches the toaster off? I wonder.
I doubt spares ar available so, unless you are competent to climbinside, just get a new cheap toaster.
