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Common Triangle Tube fault codes with what each means, the likely cause, and what CANRO Heating & Cooling does to fix them. Servicing Triangle Tube systems across Metro Vancouver since 1999.
Triangle Tube Prestige Solo and Excellence condensing boilers use the Honeywell SOLA combustion control. Error codes appear on the SOLA touchscreen with both numeric and text descriptions.
Important: One reset attempt is generally safe for transient faults. If the same code returns within minutes, stop resetting — the lockout exists to protect the heat exchanger, ignition system, and gas-valve safety circuit. Note the exact code and call CANRO at (604) 359-1081. We carry common Triangle Tube parts in every truck — most code-triggered faults are resolved in a single visit.
What it means: Burner did not light after attempts.
Common causes: Flame rod, ignitor, gas valve.
What to do: One reset; persistent service.
Reset guidance: one reset OK
What it means: Flame extinguished.
Common causes: Flame rod, gas, condensate.
What to do: One reset.
Reset guidance: one reset OK
What it means: Air pressure switch.
Common causes: Vent obstruction.
What to do: Call CANRO.
Reset guidance: no
What it means: Over-temperature protection.
Common causes: Low flow, scaling.
What to do: Service required.
Reset guidance: no
What it means: Low system pressure.
Common causes: Leak.
What to do: Top up; locate.
Reset guidance: top up
What it means: Modulating gas valve.
Common causes: Gas valve service.
What to do: no
Reset guidance: no
What it means: Non-lockout warnings on SOLA.
Common causes: Various conditions.
What to do: Usually self-clear; persistent means call.
Reset guidance: varies
What it means: Specific sensor open or short.
Common causes: Failed sensor.
What to do: Sensor swap.
Reset guidance: one reset OK
What it means: Lambda or combustion service needed.
Common causes: Full combustion analysis.
What to do: no
Reset guidance: no
Note the exact code on your display, then call CANRO. Most Triangle Tube faults are diagnosed and repaired on the first visit because we stock common Triangle Tube service parts in every truck.
📞 Call (604) 359-1081 nowCANRO services Triangle Tube American stainless-steel condensing boilers and indirect tanks in every Metro Vancouver city — including same-day emergency response for no-heat, no-hot-water, and gas-leak situations. See our city-specific Triangle Tube pages:
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This Triangle Tube error code guide is maintained by the CANRO Heating & Cooling team based on 25+ years of Triangle Tube install, service, and repair experience across Metro Vancouver. Codes and behaviour described match current model manuals. Last reviewed May 2026.
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