I’d have to check my new one but often those switches are just in series as a ph... | Hacker News

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		bombcar on Sept 25, 2022 \| parent \| context \| favorite \| on: Homemade Heat Pump Manifesto (2009) I’d have to check my new one but often those switches are just in series as a physical disconnect.

c_o_n_v_e_x on Sept 25, 2022 [–]

On some boards they're inputs as that's what provides the necessary info for the board to provide flash/error codes. Not unusual to see additional standalone limit switches (like what you observed) for extra protection.

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