My time switch makes a soft rattling noise, is that normal?

"Mechanical time switches have an internal mechanism that can produce a soft rattling noise. These time switches can also produce a clear click when turning on and off."

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Detlef Schnitzer 17-12-2023
Zeitschaltuhr Sevenlogic comfort
How can I reset the timer to factory settings?

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[email protected] 22-11-2023
Rev Typ 25700
Time setting How do the elevations have to be pressed????

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