crash89
Well-Known Member
I am a bit at a loss. I wired in a new fan, relay and controller. This is a Spal fan. I had just recently wired in a FlexALite fan. It worked, but didn’t pull enough air, so out with the FlexALite and in with the Spal.
Here’s where I start scratching my head.
My input is 12v on the trigger wire.
Ground is good.
Pin 87 on the relay switches correctly and has 12v when I cycle the key. As long as the fan is NOT connected.
Connect the fan, and voltage drops to zero when I cycle the key.
When I bypass the relay and connect directly from the positive side of the battery to the hot wire on the fan, the fan spins up and runs normally.
The temperature controller is out of the loop while I am testing the fan directly through the relay.
I feel like I must be missing something stupid. Anyone run into this before?
Here’s where I start scratching my head.
My input is 12v on the trigger wire.
Ground is good.
Pin 87 on the relay switches correctly and has 12v when I cycle the key. As long as the fan is NOT connected.
Connect the fan, and voltage drops to zero when I cycle the key.
When I bypass the relay and connect directly from the positive side of the battery to the hot wire on the fan, the fan spins up and runs normally.
The temperature controller is out of the loop while I am testing the fan directly through the relay.
I feel like I must be missing something stupid. Anyone run into this before?