Manual Extra Quality | Diehl Multi Timer 181 5

| | Likely Cause | Solution (as per Diehl instructions) | |-------------|------------------|---------------------------------------------| | Timer does not switch ON/OFF as programmed | Wrong weekday/time set | Re-enter CLOCK mode. Ensure AM/PM (if 12h mode) or 24h format is correct. | | Display is blank | Power outage or battery dead | Check mains supply. Replace internal battery (CR2032 or similar) after disconnecting power. | | Output stays ON or OFF permanently | Manual override active | Look for hand icon on display. Press override button to return to AUTO. | | Programs disappear after power loss | Backup battery exhausted | Replace battery. Reprogram timer. | | Buttons unresponsive | Unit locked or frozen | Press Reset. Use a paperclip. Reprogram from scratch. | | Relay chatters or clicks rapidly | Overload or inductive load arcing | Reduce load or add a snubber (RC suppressor) across load terminals. |

buttons until the display matches the current time. Look for a "PM" indicator if you are in the afternoon/evening. : Slide the switch back to the center Diehl Multi Timer 181 5 Manual