Users have reported seeing the Transfer Wire Warn error message on their generator display, and the generator will not transfer power after a utility loss.
Environment
This error will occur on home standby generators with Evolution 1.0 and 2.0 controllers. The system will have an automatic transfer switch.
Causes
This is typically caused by incorrect or damaged wiring of the 194 and 23 wires.
Note: Troubleshooting this issue requires inspecting the wiring and some electrical knowledge. If a generator owner is not comfortable with this, it is strongly recommended that they reach out to a local certified service dealer. See the How Can I Find a Generac Service Dealer in My Area? article for more information.
