E003CRITICAL

Ignition Failure (Navien)

Navien boiler failed to ignite the burner after multiple attempts and locked out.

What This Error Code Means

The ignition sequence did not complete successfully, preventing the boiler from firing.

Common Causes

  • Gas supply valve closed
  • Low gas pressure
  • Failed ignitor electrode
  • Gas valve not opening
  • Flame rod dirty or failed

Affected Brands

Navien

How ROMA Heating Fixes This

  • Verify gas supply and pressure
  • Inspect ignitor electrode for damage and position
  • Clean flame rod with emery cloth
  • Check gas valve operation
  • Reset and test ignition sequence

24/7 Emergency Service

Available nights, weekends, and holidays. Fast 1-2 hour response.

Licensed Technicians

TSBC Gas License LGA0202903. Fully insured and WCB covered.

Same-Day Service

We diagnose and fix error code issues quickly.

Seeing Error Code E003?

Call now — our technicians can diagnose and fix it today

Call 778-909-5731