Tag: navien

All the articles with the tag "navien".

• Navien Error Code E003 — Ignition Failure Fix

  1 Apr, 2024

  Navien error code E003 means ignition failure — the unit tried to light and couldn't detect a flame. Here's how to diagnose and fix it on NCB and NPE series units.

• Navien Error Code E003 — Ignition Failure Fix

  15 Mar, 2024

  Navien error code E003 means ignition failure on NPE, NPN, and NCB series tankless water heaters and combi boilers — here's how to diagnose and fix it.