I created a drawing from Zach’s post. He is 100% correct when he says jumpering the rear switch will fix the unit. Jumper “B” “3” & “4” from the rear switch and the unit will work from either/both timers.
Note- the wired you will be jumping together are the soldiered wires on the actual switch.
Also- I didn’t add color wired because the color wires in my unit are different from Zach’s.
