Quote:
Originally Posted by Houston Ben
Thanks for the reply dayj1!
Question, relay 1 & 2 are 4 pin and 3 is a 5 pin, could that be a problem that I am not using 5 pin for all 3 relays?
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It's OK to use 4 pin relays for 1 and 2. Just double check your wiring on relay 1 and verify that it matches the diagram that you posted. The way that you're trying to set them up is the best way, IMO. Your fans will last longer since they'll only be running at 1/2 speed most of the time.