Boiler Error Codes — Brand-by-Brand Meanings & Repair in Greater Vancouver

A flashing fault code on your boiler is the control board telling you which condition shut it down. Use the brand guides below to find what your code means, what’s safe to check yourself, and when to call HeatLand for licensed boiler repair across Greater Vancouver.

Boiler error codes by brand

The most common problems behind boiler error codes

• Ignition & flame faults — no/low gas, a frozen or blocked condensate drain, or a dirty flame sensor stop the burner lighting or holding a flame.
• Low water pressure — a slow leak or air in the system drops pressure below the minimum, so the boiler locks out.
• Overheat / high-limit — poor circulation, a stuck pump, trapped air or scale make the boiler too hot.
• Fan, flue & air — a failing fan or a blocked intake/exhaust trips an air-pressure or fan-speed fault.
• Sensor & control faults — a failed thermistor, wiring fault or control-board error.

Most of these are licensed, TSBC-certified gas technician repairs — but many are sensors or parts, usually far cheaper than replacing the boiler.

Boiler repair across Greater Vancouver

HeatLand’s licensed technicians have repaired Metro Vancouver boilers since 1999 — every major brand, including units we didn’t install. Honest repair-or-replace advice, upfront pricing, free estimates, and priority emergency repair. Explore Boiler services or request a free estimate.

Error codes for other HVAC systems

Boiler error code FAQs

What do boiler error codes mean?

A boiler error code is the control board telling you which safety or sensor condition stopped the unit. The exact meaning depends on the brand and model, so always confirm against your unit’s manual and have the repair done by a licensed, TSBC-certified gas technician.

Can I clear a boiler fault code myself?

You can safely check the basics (gas supply on, power on, the thermostat calling for heat, system pressure in the normal range, and the condensate drain not frozen or blocked (a common cause in Vancouver cold snaps)) and restart once. If the code comes back, stop and call a licensed, TSBC-certified gas technician.

Which boiler brands do you repair?

HeatLand is brand-agnostic. We repair Navien, Viessmann, IBC, Bosch/Buderus, Rheem, NTI, Vaillant, Triangle Tube, Weil-McLain, Lochinvar and other major boiler brands across Greater Vancouver — including units we didn’t install.

Is a boiler that won’t run an emergency?

No heat in cold weather is worth treating urgently. Call HeatLand at (604) 330-3812 for priority repair.