Braemar fault code 27
Ignition failure (no flame sensed).
What 27 actually means
Ignition failure. The heater attempted to light and no flame was sensed, so it has stopped rather than keep releasing gas.
What causes it
- Gas isolation valve closed, or gas off at the meter
- LPG bottle empty or changeover valve not switched
- Igniter worn, which is the common genuine fault on older units
- Flame sense rod dirty or corroded
- Gas pressure low at the appliance
Most likely first. That order is from what we actually find on site, not from the manual.
Safe to check yourself
No tools, no covers off, nothing to do with gas, refrigerant or wiring.
- Check the gas isolation valve at the heater is open
- Check another gas appliance in the house lights
- If you are on LPG, check the bottle
- Reset once and let it complete a full attempt
What we check on site
So you know what you’re paying for.
- Gas pressure test standing and working
- Igniter condition and resistance
- Flame current in microamps
- Gas valve operation
- Combustion analysis once lit
Can you keep using it?
Nothing to keep running. One reset is fine; a night of resets is not.
What the fix usually involves
Igniter or flame sense rod on most of them, and both are one-visit parts. A meaningful number turn out to be a valve someone closed.
Is it worth fixing?
That depends almost entirely on how old the unit is. Past about ten years on hot water and gas heating, and twelve on aircon, a significant repair usually costs more per remaining year than a replacement does — and it’s the same point at which the VEU rebate is worth the most, because old inefficient appliances are exactly what the scheme pays to remove. If yours is young and the fault is a component, we’ll fix it and say so.
Repair or replace? The 10-year rule, and what the rebate is worth →