Warning: This is high voltage. If the "Hamhya" manual implied safety instructions, here it is: Disconnect mains before wiring.
Diehl SPDT Panel Mount 230V 24-Hour Timer Instruction Manual Diehl Multi Timer 181 5 Manual Hamhya
Installation should only be performed by a qualified electrician, as these devices involve live voltage. Warning: This is high voltage
Since the term "Hamhya" yields no results, use these corrected search terms to find the PDF manual: Diehl Multi Timer 181 5 Manual Hamhya
Once times are set, slide the mode switch to AUTO or RUN . A blinking colon typically indicates the timer is active.
The system relies on structured configurations via an LCD user interface.