On 23/11/19 5:34 pm, whit3rd wrote:
On Friday, November 22, 2019 at 11:50:53 AM UTC-8, Cursitor Doom wrote:

I refer to you this photo of the internals...

Question is, what is the correct name for this 'mystery component' and
what should it read resistance-wise when cold?

It's either an energency overtemperature cutoff (like a fuse), or a thermal
switch that repeatedly time-cycles according to the
heating/cooling time constant of its companion resistors.

It has a '2A' rating, not a temperature rating, so probably NOT
the emergency cutoff. Maybe a PTC resistor (solid state 'switch').

The diodes presumably send current to heating element A on
positive half-cycles, and heating element B on negative half-cycles
(so as to retain some function if one element fails open-circuit).

It's cactus, throw the thing out.