Noritz Boiler Troubleshooting
Common Noritz boiler problems in plain English — likely causes, the fault codes behind them, the safe checks you can make, and when to call a licensed BC gas technician.
Noritz condensing units show a numeric fault code on the controller or remote. Built on Noritz's tankless heritage, they are efficient but sensitive to venting and condensate conditions. This reference covers the common Noritz fault codes, their causes, and why ignition, gas and venting faults are work for a licensed BC gas technician.
Boiler repair is licensed gas work in BC. Use these guides to understand the problem and make the safe checks — but never work on the gas, combustion or safety controls yourself. If you smell gas, leave and call 911 or FortisBC at 1-800-663-9911 from outside.
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Noritz troubleshooting — FAQ
What are the most common Noritz boiler problems?
The most common Noritz boiler problems we see in Greater Vancouver are no heat, ignition and flame-loss lockouts, overheating, venting / air-pressure faults and pressure loss. Noritz boilers show a fault code when a safety circuit trips — we document 17 of them with causes and fixes.
Can I fix my Noritz boiler myself?
Only the basics — checking the thermostat, power, gas isolation valve and system pressure, and reading the fault code. In British Columbia, work on the gas, combustion or safety controls of a Noritz boiler must be done by a licensed gas fitter. Reset at most once; if a fault returns, call GasBoilers.ca at 604-359-1081.
Do you repair Noritz boilers across Greater Vancouver?
Yes. Our Red Seal–certified, TSBC gas-licensed technicians service Noritz NCC combi and condensing series across Vancouver, Burnaby, Surrey, Richmond, the Tri-Cities and the rest of Greater Vancouver, with same-day appointments often available.
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Get your Noritz boiler diagnosed by a licensed technician
Red Seal–certified gas technicians across Greater Vancouver. Upfront pricing, same-day service available.