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Lost 3 hours on a Vista 20P panel in a Tulsa attic last Tuesday
Last Tuesday I was wiring a Vista 20P in a Tulsa attic and the keypad kept showing CHECK 09 every time I powered up. Turned out the zone 9 wire had a tiny nick from a staple gun that only shorted when the attic got hot around 2pm. I finally ran a jumper and it cleared. Has anyone else dealt with heat related zone faults in attics?
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