[Homeroast] Alpenrost - end of service

raymanowen at gmail.com raymanowen at gmail.com
Sat Aug 28 03:50:22 CDT 2010


"...the thermal cutoff switch.
You'd need to take it apart to access the switch, but as I recall it didn't
even require soldering, and you can get a replacement switch for something
$5 at radio shack (though that one will probably crap out eventually too."

Are you not talking about the Fth or thermal fuse? In the infinite wisdom of
Big Government, UL approval depends upon the inclusion of a "gimmick" to
make sure you don't operate your hobby appliance on too great a duty cycle,
like the commercial machine it isn't.

Radio Shack doesn't know this one, but they actually sell a thermal fuse
replacement on a continuous roll. It's a roll like teletype paper, actually
18-Ga copper wire. Current-wise, it can handle 16 A in an under-chassis
location like roaster innards, so you might have to depend on the 15 A
circuit breaker in a standard home installation. Current protection still
exists.

Temperature-wise, you need not worry. Short of a thermonuclear exchange, the
1900° F melting point of copper will not give the failures nur das Leben zur
Hölle lostreten. Thermal protection triumphs.

"Fuse" means melt.  A fusible wire carrying current generates a little heat.
 In some kind of cartridge, especially glass, the heat is trapped and
builds. With current flowing at less than the rated capacity over an
extended time, the fusible link still gets hot and melts out.

Understand, if you install the upgraded Fth, the machine will operate more
reliably but you must commit to watch it. No texting, no online shopping
while el-roasto is el-roasting.

Cheers, Mabuhay, bitte Schicken Sie den Kaffee ein -RayO, aka Opa!
-- 
Persist in old ways; expect new results - suborn Insanity...


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