Action Yes No
Step 7
Note: The sensor (mailbox rear door interlock) should be disabled by
blocking the sensor.
Open the mailbox rear door. Do a feed test. Enter Diagnostics menu and
navigate to:
Output bin tests > Feed to all bins
Check if the mailbox transport rollers rotate when the test is performed.
Does the main motor make the transport rollers rotate?
Go to step 8. Replace the mailbox
main motor. See
“Mailbox main motor
removal” on page
706.
Step 8
Open the mailbox left cover. Check the main drive gear for damage and
obstructions.
Note: To access the main drive gear, see “Mailbox main drive gear
removal” on page 703.
Is the main drive gear free of damage?
Go to step 9. Replace the mailbox
main drive gear. See
“Mailbox main drive
gear removal” on
page 703.
Step 9
Open the rear door and do the following:
• check the rear door for damage
• manually turn the rear door rollers and check if they are ok
• check if the rear door opens and closes properly
Is the rear door functional and free of damage?
Go to step 10. Replace the mailbox
rear door. See
“Mailbox rear door
removal” on page
689.
Step 10
Reseat all connectors on the controller PCBA, then POR the machine.
Does the error remain?
Replace the controller
PCBA. See“Mailbox
controller PCBA
removal” on page
707.
If the error persists,
then replace the
mailbox option. See
“Mailbox option
removal” on page
688.
The problem is solved.
4063
Diagnostic information
143
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