I've thought about installing one of those automatic valves, but do you ever worry about false alarms or malfunctions? Like, what if it randomly shuts...

Good points about silicone spray—I hadn't thought about WD-40 causing issues with rubber seals. Makes sense though. I'm curious, has anyone tried thos...

Are you sure it's wiring though? Had a thermostat go nuts once, thought it was wiring too... turned out to be a dying battery. Maybe check the simple ...