Otis · 400 Elevator
Indicates that the bill stacker in the bill validator is full. This prevents the acceptance of any further banknotes until the stacker is emptied, stopping cash transactions.
Click steps to track your progress.
Safely open the bill validator unit and empty the bill stacker of all banknotes.
Verify the 'Bill Stacker Full' error clears from the elevator display or control panel after reassembling the unit.
Inspect the bill stacker full sensor and associated mechanical components for obstructions, damage, or misalignment if the error persists.
Check the power supply voltage to the bill validator unit and communication lines to the main elevator controller for integrity if the unit remains unresponsive after clearing.