The elevator turns on the stop light and the hall door is always open. How can we resume operations?

One: the light curtain line of the light curtain power box is not in good contact, or there is something wrong with the light curtain.

Two: the problem of the door crane controller, try another door crane, or the door closing signal is not normal, let the door crane controller learn and try.

Three: It is also possible that there is more dust on the contacts of the light curtain power box, light curtain and portal crane controller. Try to clean the dust.