
To reset your Siemens MS-151 Manual Fire Alarm Station after an alarm, follow these straightforward steps: First, confirm that the toggle switch is set to the NORMAL position. Then, insert the Allen key and turn it counterclockwise a quarter turn. The station will reset automatically. Avoid holding the cover during this process. If you need to remove the cover, turn the Allen key counterclockwise one quarter turn while gently pushing the cover upwards, then pull the cover away from the backplate.


