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Anonymous users2024-01-24You're talking about the lower floors. There are 3 possibilities, 1 is that if there is no power, the host keyboard light will not light up. 2. The speaker of the host is broken, and the doorbell rings at home, or the host is completely broken, and it does not sound inside and outside. 3. The utility line is broken.
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Anonymous users2024-01-23Yes, the center motherboard is damaged. Maybe the power went out. Check the power supply.
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Anonymous users2024-01-22You should go to the property or repair it yourself.
Is the power supply not powerful, there are many building intercoms that cannot supply power to the electric lock, and you need to buy a power supply to supply power to the electric lock.
The same feeling, and it is very troublesome to change the battery, the battery leakage doorbell is broken, the door-to-door repair, the door-to-door fee is 100, and then I bought a wireless doorbell.
Hello landlord! As you said, it should be you, it should be the unit intercom electronic door, the doorbell does not ring, it should be a problem with the line, it is not a big problem, and it can be easily solved by finding a lock company. Generally, there are many small advertisements on the stairs and walls of the accommodation building. >>>More
I don't know if the maintenance period of the anti-theft door Ling has passed, if it has not passed, you can arrange someone to repair, and then you can't go online to find some door-to-door service repair stations, but you must be careful to ensure its true reliability. >>>More
It's a bit of both. First replace the battery to see if the battery is dead, and then check whether the circuit is obviously broken. If these two problems are not, you can call the manufacturer's after-sales service phone and ask them to come to solve the problem.