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My newly installed Skuttle HSP2000 steam humidifier, controlled by a Generalaire GFX3 humidistat and wired to a Lennox G40UH-48B-090-14 is turning on the AC when being called for humidity. I've verified all wiring

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    Can you post wiring diagrams + photos of the wiring please? – ThreePhaseEel Nov 3 '19 at 15:59
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    just to be certain, do you have a smart thermostat? Ensure it isn't set to reduce humidity, you may have your system fighting itself. – noybman Nov 3 '19 at 16:07
  • An AC doubles as a de-humidifier (just in case that's not known). – Nelson Nov 4 '19 at 2:42
  • Is it actually running the compressor or just the air handler? – Ed Beal Nov 6 '19 at 14:56

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