@shortbus I'm fairly sure this is my problem but I think the previous person put in the wrong thermal cutout so not sure what part to get. Can you please help/advise?Why? The switch/thermostat should reset it's self on cool down. A manual rest before cool down would just have the switch turn off again because it is already at temperature.
"A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops" From; https://en.wikipedia.org/wiki/Thermal_cutoff
I think I need normally open but not sure of parameters.
Mod: link to old thread
https://forum.allaboutcircuits.com/threads/thermostat-switch-question.162472/post-1424101
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