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Can we talk about the old way we used to check for door zone faults...
I used to just listen for the click and watch the light, but a call at the First National building downtown showed me that doesn't always catch it. The door zone on that 1998 Dover was just a hair out, and I only found it by putting a meter on the lock contacts and seeing the voltage drop. Now I always meter the lock circuit first, even if the light says it's fine. Anyone else run into a 'good' light on a bad lock?
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charles6405d ago
Hold on, "a meter doesn't lie" is a bit much. That extra step adds a lot of time on every single call. If the door light is on and the car runs, 99 times out of 100 the zone is fine. You only need the meter for those weird old units, and how many of those are left? Most places have upgraded.
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logan_mitchell5d ago
Wait, the First National building downtown still has a 1998 Dover running? That's wild they haven't upgraded that whole system yet. You're right though, a light can lie if the zone is just barely out. A meter doesn't lie. It's a pain but you gotta check it the right way.
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morgan_king365d ago
Actually there are way more old units out there than people realize. Landlords hate spending money on upgrades until something totally dies. A meter saves you from callbacks on those sneaky almost-failed zones.
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