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

A flashing fault code on your furnace 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 furnace repair across Greater Vancouver.

Furnace error codes by brand

The most common problems behind furnace 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 furnace.

Furnace repair across Greater Vancouver

HeatLand’s licensed technicians have repaired Metro Vancouver furnaces 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 Furnace services or request a free estimate.

Error codes for other HVAC systems

Furnace error code FAQs

What do furnace error codes mean?

A furnace 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 furnace fault code myself?

You can safely check the basics (the furnace switch and breaker on, a clean air filter, the gas supply on, the thermostat set to heat and calling, and — on high-efficiency models — the condensate drain not blocked or frozen) and restart once. If the code comes back, stop and call a licensed, TSBC-certified gas technician.

Which furnace brands do you repair?

HeatLand is brand-agnostic. We repair Lennox, Carrier, Bryant, Trane, Goodman, Amana, Rheem, York and other major brands and other major furnace brands across Greater Vancouver — including units we didn’t install.

Is a furnace that won’t run an emergency?

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