Tag: tankless

All the articles with the tag "tankless".

• Navien NFC Combi Boiler Error Codes: Complete Guide

  22 Apr, 2026

  Navien NFC combi boiler error codes and fault diagnostics. E-series error codes, causes, and technician-level troubleshooting procedures.

• Rinnai Error Code 11 — No Ignition Fix

  9 Apr, 2024

  Rinnai error code 11 means the tankless water heater failed to ignite. This guide covers every cause and fix for the Rinnai Code 11 ignition failure.

• Navien Error Code E012 — Flame Loss During Operation Fix

  8 Apr, 2024

  Navien E012 error code means the flame was lost during operation. This guide covers diagnosis and fixes for the Navien E012 flame loss fault on tankless and combi units.

• Navien Error Code E001 — No Ignition Fix

  7 Apr, 2024

  Navien E001 error code means the burner failed to ignite. This guide covers every cause and fix for the Navien tankless water heater and combi-boiler E001 ignition fault.