W
William AyalaAug 7, 2025
How to fix a Marsen UTL-200 unit that does not switch on?
- DDaniel BergAug 7, 2025
If your Marsen Security Sensor unit doesn't switch on, there are several possible reasons. The battery might be too low, so try changing the battery. Also, check the battery terminal and the display unit terminal for any corrosion. If these steps don't resolve the issue, the switch may be defective, and you should contact the manufacturer.
