Error Code: 372A, How to resolve on the DM400C and DM475

Learn how to resolve error code 372A on the DM400C and DM475.
Products affected: DM400C™ and DM475™


Error code 372A displays on the meter and it will not run mail.


This indicates a possible jam in your meter or the mail piece is too long.


  • Verify the length of the mail piece.  The maximum length of an envelope is 15 inches (14 inches for the DM475 running in wow mode)
  • Unload the tapes, open the top cover and all jam release levers.  Remove any mail pieces in the machine.  Blow out the mail path with non-flammable compressed air to remove dust and debris
If your issue is not resolved, contact customer support from 8 am to 8 pm Eastern Time. Have your model number ready.

UPDATED: 07 June 2021