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

A flashing fault code on your air conditioner 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 air conditioner repair across Greater Vancouver.

Air Conditioner error codes by brand

The most common problems behind air conditioner error codes

• Communication faults — the indoor and outdoor units lose their signal (wiring, connector or board fault).
• Sensor / thermistor errors — a coil or room sensor reads out of range.
• Fan & compressor faults — a failing fan motor, capacitor or inverter/compressor.
• Refrigerant & pressure faults — low charge, a leak, or a high/low-pressure trip.
• Control-board & power faults — PCB errors, voltage problems or a tripped breaker.

Most of these are licensed HVAC technician repairs — but many are sensors or parts, usually far cheaper than replacing the air conditioner.

Air Conditioner repair across Greater Vancouver

HeatLand’s licensed technicians have repaired Metro Vancouver air conditioners 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 Air Conditioner services or request a free estimate.

Error codes for other HVAC systems

Air Conditioner error code FAQs

What do air conditioner error codes mean?

A air conditioner 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 HVAC technician.

Can I clear a air conditioner fault code myself?

You can safely check the basics (the power and breaker on, the air filter clean, the outdoor condenser clear of debris, and the thermostat set to cool) and restart once. If the code comes back, stop and call a licensed HVAC technician.

Which air conditioner brands do you repair?

HeatLand is brand-agnostic. We repair Carrier, Lennox, Trane, Goodman, Daikin, Mitsubishi and other major brands and other major air conditioner brands across Greater Vancouver — including units we didn’t install.

Is a air conditioner that won’t run an emergency?

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