Mountaineerfan 44 Report post Posted January 1, 2020 Putting a new electric fan in. Current wiring harness is set for a 2speed fan. New fan is single speed. Can I still use the current harness? Just wire the fan to the Fan #1 relay? Quote Share this post Link to post Share on other sites
Mach1 Driver 560 Report post Posted January 2, 2020 There isn't enough information to make an informed decision. It will probably work, but what is the amp rating of the relay, and the load of the new fan? What is the wire gage size feeding the relay? Quote Share this post Link to post Share on other sites