Jeff Liebermann wrote:
On Thu, 22 Mar 2012 10:12:07 -0400, Phil Hobbs
wrote:


Nasty cheap Chinese thermal fuses-higher rate of failure to open in a
real overtemp condition-using two in series may keep your house from
burning down, if they don't both fail the same way.


Maybe. Such guesswork would be greatly reduced if the original poster
would kindly provide the Braun model number.
https://www.google.com/search?&q=braun+coffee+maker&tbm=isch

If the coffee maker is of the drip type automatic variety, then there
are two heaters. The upper heater, that heats the water before it
goes through the coffee filter, and the warmer at the base, that keeps
the pot of coffee warm. Such a derrangement requires two thermal
fuses, one for each heater.

Incidentally, I had a really old Mr Coffee maker overheat and melt the
plastic case. The thermal fuse never blew. The consensus was that
water somehow invaded the Microtemp thermal fuse, and rusted
everything in place.


Our Bunn is a Model GRX.

The two thermal series connected fuses are both located side by side on
top of the heated water tank.

There was no accessable thermal fuse I could see located on the warmer
heater, but maybe one was buried inside it.

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.