This was the OG radiant floor heating system brain, which makes me think the switch could be toast. Things happen over decades, electricity is weird, and has been fluctuating with all the projects.
GadZooks, this wasn’t wired by me, lots going on here, am I in over my head?!
Okay well then. I gave it a Proper Poke (the reset button was feeling funny, I used a little piece of copper earlier after breaker reset that must’ve dislodged the reset button cover) and
Presto! I guess I’ll put it back together and light a fire. (See, having a fire heats the fluid in the system, I don’t want to boil said fluid [as happens when it it isn’t circulating, taking the heat from the fire/bench into the floor] and introduce gas into the system. The fire and the radiant floor are integrated)
Maybe I’ll draw a bath now that the sink is clean…
DeedleDoodleDaily 