In that case I agree. The new fan is bad, miswired or incompatible.
It just twitches once and stops.
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It just twitches once and stops.
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In that case I agree. The new fan is bad, miswired or incompatible.
I applied 12V, minus at the black and plus at the red wire ends and the blades twitched just once and nothing then. The yellow wire I presumed it was the Tacho and I left it unconnected.