Lighting jitter during freight elevator operation

Poor contact. When the freight elevator is running, the light jitter is the poor contact of the button for a long time, because the light is broken and does not affect the elevator operation. Don't worry about this situation, don't be afraid, the flashing light has nothing to do with the elevator, and the lighting circuit is separated from the elevator operation system. In this case, you can find the property department, which asks the elevator professional maintenance unit to handle it, and you can find the management to repair it.