A single failed landing node board pulling down the entire network voltage.
Indicates an invalid contactor feedback state while the elevator is idle. This usually requires checking the auxiliary contacts of the SB (Safety Brake) contactor. schindler 5500 error codes top
Contactor failures, specifically when SH/SH1 (Safety Contactor) or SB/SB1 (Brake Contactor) do not pick up, or fail the feedback check. A single failed landing node board pulling down
Accelerated deceleration or acceleration profiles configured incorrectly. guide shoes tracking poorly
The door operator detected an obstruction (real or phantom) three times in a row.
Mechanical binding in the hoistway (e.g., guide shoes tracking poorly, counterweight derailment). Short circuit in the motor windings or motor power cables.
Press the reset button on the GCIOCF PCB once. When the red LED turns off, press it again.