For those who doesn’t have related experience, it is suggested to request door-to-door after-sales service or go to the nearby branch for help.

       step 1:

check if remote control has battery, if it doesn't have, replace new battery; if it has, check alarm power supplying wires.

step 2:

check power supplying wire of alarm socket, if it has power, then alarm is broken; if it doesn’t have power, check main wire or battery cord, repair wire connection or power connection.