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    Why am I reading 5V on this terminal? any harm?

    I have a 240V 2 speed Magnetek 1081 motor/pump connected to an Intermatic RC2491RT mechanical timer on my swim spa, everything 20+ years old. I want to add a 240V ozonator powered on LO only. When I test Line2 terminal and the Timer/Lo terminal I get "0"V when the pump is OFF, 240V when the...