Looking at the schematic in the link for Jon's fan controller. It's not explained how/why the blue wire to the A/C condenser works.
If you had a forward mounted condenser, I would guess it would run the radiator fans for air draw through the condenser. What does it do for a rear mounted condenser fan? Wouldn't the A/C condenser fan be best controlled by a trinary switch reading high side A/C system pressure?
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