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Ran 22 gauge on a 400 foot run in Phoenix and now I'm getting voltage drop
Last month I wired a shop building in Phoenix and used 22 gauge for the keypad runs to save time. Everything tested fine at the panel but two zones on the far wall keep showing trouble. I know 18 gauge would have held up better over that distance, so should I just pull new wire or can I fix this with a bigger power supply?
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