Rework Station 858D fuse blow and heating element burnt out

the front 7 seg lights up, the front panel and control work when I last tested it. I believe the fan speed works too.

I have tested the triac (bta16-600b) out of the circuit, from left to right pin ( the left 2 pin has 0 ohm and continuity beeps) (attached picture)

it is a 110V ( so it says at lesat haha)

which one is the thermocouple or thermistor ?

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