The safe reset, step by step
- 1Turn the heater off at the wall controller and wait two minutes.
- 2Switch off the heater's isolation switch or its circuit breaker for 30 seconds, then switch it back on. This clears a lockout.
- 3Set the controller to heat, drop the target temperature well above room temperature and listen for the fan and ignition sequence.
- 4If it lights and then shuts down again within a few minutes, stop — repeated ignition attempts on a faulty unit are not something to keep forcing.
About Brivis fault codes
Brivis controllers show a fault as a code on the display or as a flashing pattern on the unit's status light. The exact code numbering differs between Brivis models and controller generations, so don't rely on a code list you found for a different model. Photograph the display and read us the code — we can usually tell you over the phone whether it's a sensor, an ignition fault or a board failure, and roughly what the repair involves.
Symptom by symptom
| Symptom | Likely cause | What to do |
|---|---|---|
| Fan runs but the air is cold | Ignition failure, gas supply issue or a lockout after failed attempts | Confirm other gas appliances work. If they do, the fault is in the heater — burner, igniter, flame sensor or gas valve. That's a licensed job. |
| Nothing happens at all | No power, tripped breaker, or a dead controller | Check the isolation switch near the unit and the breaker in the meter box. If power is on and the controller is blank, the controller or its wiring is the likely culprit. |
| Heats then cuts out after 10–20 minutes | Overheat cut-out, usually caused by restricted airflow | Check and clean the return-air filter. Crushed, disconnected or collapsed ductwork causes the same symptom and needs inspecting in the roof. |
| Warm in some rooms, cold in others | Ductwork or zoning problem, not a heater fault | Feel the airflow at each outlet. Weak airflow at the far end usually means a disconnected or crushed duct — a very common find in older Bellarine roof spaces. |
| Burning or dusty smell on first start | Normal dust burn-off after a summer of not running | If the smell lasts more than 30 minutes, or smells sharp or acrid, turn it off and call us. Any gas smell means shut the gas off and ring the gas emergency line first. |
Anything involving gas, refrigerant or the inside of the unit is licensed work. If you smell gas, shut the gas off at the meter and call the gas emergency line first.
If the reset doesn't hold, book a service. Brivis ducted heaters must be carbon monoxide tested by a licensed technician — especially units over ten years old.