47-55.1 no spark after vintage air install

[joedoh]

did you use a relay on the condenser fan or hook it straight to ignition? condenser fans draw 25-30A and you should use a relay, a standard automotive type will be fine.

if you havent used one and want to know how to wire it,

pin 87: heavy fused (10-12ga, 30A fuse) from battery

pin 85: wire from your binary or trinary switch, could be + or - trigger. can be lighter ga wire, 85 and 86 are the low current "switch" 87 and 30 are the high current contacts.

pin 86: the opposite of the wire from your binary/trinary switch, so if pin 85 is a - trigger you would put + on 86. if you trigger on 85 is positive (like what triggers the AC clutch) you would put - (ground) on 86.

pin 30: + out to condenser fan. this will be 10-12ga like the 87. you will ground the other wire on your condenser fan.

and dont use the pink (ignition) wire as a supply for any of these wires.