Common Navien Combi Boiler Problems & Fixes
The most common Navien combi boiler faults — no heat, no hot water, leaks and error codes — and how we fix them.
Like any combi boiler, Navien units can develop faults over the years. Here are the most common Navien issues and how our licensed technicians resolve them across Greater Vancouver.
Common Navien faults
Typical issues on combi boilers including Navien are no heat or hot water, low or dropping pressure, leaks from the relief valve or pump, ignition lockouts, and error-code faults — most of which are repairable.
Getting your Navien fixed
Our technicians diagnose the exact Navien fault — often using its error code — and repair it with genuine parts. Where a major part fails on an older unit, we give honest repair-vs-replace advice.
Key takeaways
- No heat or hot water: check pressure and thermostat first
- Note the exact error code
- Don't repeatedly reset after lockouts
- We repair all Navien models
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Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..