The Diehl 181 5 uses small sliding segments (pins) around the edge of the dial.
Check that no segments are accidentally pushed down in the "OFF" zone and ensure the override switch is set to the "Clock" symbol. diehl multi timer 181 5 manual
Each segment typically represents 15 minutes. If you want a lamp to stay on from 6:00 PM to 8:00 PM, you will need to push down 8 consecutive segments starting at "18" on the dial. 4. Using the Manual Override Switch The Diehl 181 5 uses small sliding segments