I have three switches in the half bath. One got the overhead light, one for the vanity light and one for the fan. I’m replacing all there with decora type switches. The vanity is getting a regular toggle switch. The overhead light is getting a motion detector switch. The fan is getting a timer switch. The first two I had no issues with but the fan switch is causing me problems. The original wiring only used 2 wires and the new switch has 4.
left two switches swapped out. Right fan switch still old wiring.
overhead switch CU
motion detector switch CU
old fan switch CU
here’s the new timer switch. Yellow is for 3-way.
How do I wire the timer switch with the current wiring? Thanks for your help!