What is the fault of Fujitec elevator car roof not moving during inspection and machine room inspection?

The Fujitec elevator car roof does not go out for maintenance, and the machine room does not go for maintenance. It is because the contact of the transfer switch contacts is good and bad, causing the fault. According to the query of relevant public information, it is shown that the elevator is not running normally. If the elevator is not running properly, the first step is to consider whether the safety circuit is disconnected. If all safety circuits are connected, measure all the fuses in the control cabinet.