Common NTI Combi Boiler Problems & Fixes
The most common NTI combi boiler faults — no heat, no hot water, leaks and error codes — and how we fix them.
Like any combi boiler, NTI units can develop faults over the years. Here are the most common NTI issues and how our licensed technicians resolve them across Greater Vancouver.
Common NTI faults
Typical issues on combi boilers including NTI 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 NTI fixed
Our technicians diagnose the exact NTI 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 NTI models
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Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..