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GrimResistance t1_ja3quio wrote

At the fan box white is neutral, yellow is hot, connect a ground wire to the metal box. At the switch the reds are line (one incoming hot, one going out to feed another switch or outlet) and the yellow is the load (hot at the fan box). Again, ground the dimmer switch to the metal box.

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_Deathless OP t1_ja3sdkz wrote

So 2 red wires at single pole at dimmer switch then yellow = black then create ground?

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GrimResistance t1_ja3ty9y wrote

Yes, though colors don't matter too much. Keep in mind the switch is just making/breaking the connection of the hot wire, so the reds are hot before the switch (line - always live) and the yellow is hot after the switch (load - switched on and off). It's best to double check with a multimeter but that's what it looks like from your pictures.

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