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The More He Knew, the Less He Checked the Heat Pump

There is a kind of technician I have hired three or four times in forty-five years and let go of every single one. He is not lazy. He is not stupid. The opposite. He is sharp, he reads, he has opinions, he can name every component in a Trane variable-speed air handler and tell you which engineer at the factory probably signed off on the board. He shows up to the interview confident. His references check out. The first month, he is impressive. Then the callbacks start. I want to talk about that today. About a pattern I have watched repeat at least four times in my own shop and a dozen more…

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