Otis · 400 Elevator
Indicates a ROM checksum error within the bill acceptor, suggesting corruption of its firmware or configuration data. This can lead to validation failures or system instability for banknotes.
Click steps to track your progress.
Verify the input supply voltage to the bill acceptor module against the manufacturer's specifications.
Inspect all electrical connections and harnesses between the bill acceptor and the main elevator control system for integrity and secure seating.
Check the diagnostic menu or event logs within the elevator's HMI or service tool for any additional fault codes related to the bill acceptor or communication.
Perform a controlled power cycle of the bill acceptor module by de-energizing and re-energizing its power supply.