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Spent 5 hours tracing a door zone fault that ended up being a single bad wire in a 90s Dover panel.
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xena8866mo ago
Five hours is nothing for a door zone fault, that's actually pretty good time. Those old Dover panels are a nightmare to work on, you got lucky it was just a wire. Could have been a bad board or a motor issue, then you'd really be there all day. Some techs would kill for a five hour fix on something that obscure.
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sarah2686mo ago
Respectfully, five hours on a single wire feels like a long haul to me. Maybe I've just been lucky with those old Dover panels, but I usually find the door zone wiring pretty straightforward to follow. Xena886 makes a fair point about worse problems hiding in there, though. Still, tracing a fault for half a day would have me pulling my hair out.
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christopher9525mo ago
Started with the simplest test first, checking continuity on each wire in the door zone circuit one at a time. Found it when I noticed the resistance reading jumped a little on the third wire, which meant there was a break inside the insulation you couldn't see. That saved me from chasing bigger problems that weren't really there.
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