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How do i deactivate siren on lp1-4000?

how do i deactivate siren on lp1-4000
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Mend DSC 3651 Alarm Code Set

Reset alarm without knowing code?

we've moved into a house with a 3651 alarm but do not know the alarm code to set it. how do we reset it and put new code in?


Pamela Roberts
July 2021
DSCDSC 3651Security Systems, Home Alarm SystemsAlarm Code Set
Find a manual for your model by searching. There should be away to reset it back to factory state.

F
July 2021
many thanks!!

Pamela Roberts
July 2021
You will need to identify the make and model first. Then you should be able to look up how to do a factory reset.

Rob
July 2021
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