Navien Tankless Error Codes

Posted on Apr 25, 2010 | 73 comments

This is the Entire list of Error codes for the Navien tankless water heater. These troubleshooting tips are for models 180, 210, 240, 180A, 210A, 240A, NPE-A, NPE-S. New — Replacement Parts Available Here! For immediate help give us a call (647) 925 1930 or fill out our quick contact form here To trouble shoot the systems yourself try our interactive guide.  We provide sales, support, and maintenance on all Navien Tankless...