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

A flashing fault code on your water heater 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 water heater repair across Greater Vancouver.

Water Heater error codes by brand

The most common problems behind water heater 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 water heater.

Water Heater repair across Greater Vancouver

HeatLand’s licensed technicians have repaired Metro Vancouver water heaters 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 Water Heater services or request a free estimate.

Error codes for other HVAC systems

Water Heater error code FAQs

What do water heater error codes mean?

A water heater 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 water heater fault code myself?

You can safely check the basics (the gas supply on, the pilot light or igniter, the temperature dial setting, the breaker on (power-vent/electric/hybrid models), and no water leaking around the tank) and restart once. If the code comes back, stop and call a licensed, TSBC-certified gas technician.

Which water heater brands do you repair?

HeatLand is brand-agnostic. We repair Bradford White, A. O. Smith, Rheem, John Wood, Bosch, Noritz, Takagi and other major brands and other major water heater brands across Greater Vancouver — including units we didn’t install.

Is a water heater that won’t run an emergency?

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