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How do I turn my alarm off when it keeps going off and displays BF?

My alarm shows BF in the keypad display and the alarm keeps going off. How do I turn system off 9800+ model

Kandy1964
December 2011

they just out to get you mate :-)

gts
December 2011

It's like being a stuck record isn't it?

acorn
December 2011

bf=battery faulty replace the battery in control panel

gts
December 2011

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