How to repair Li Kang elevator x6 without lighting?

1. Check the power supply: make sure that the elevator power supply is connected normally without looseness or power failure.

2. Check fuse: Check whether the fuse in the elevator control box is burnt or short-circuited, and replace it if necessary.

3. Check the connection of the control panel: Check the connecting wire between the elevator control panel and the lamp to ensure that the connection is firm and not lost or damaged.

4. Check the light bulb: Take off the light bulb and check it. It is found that the light bulb is damaged or burnt out and needs to be replaced with a new one.

5. Check the control panel: the above steps are normal, but the light is still off. It's the fault of the control panel, and professional maintenance personnel need to be invited for further investigation and maintenance.