Braemar Overtemp Switch 130 Deg Manual Flame Roll Out

This Braemar overtemp switch is a vital safety component for ducted gas heating systems, engineered to protect against overheating and potential flame roll-out. It’s a manual reset type, meaning once it trips, the fault needs addressing before it can be reset and the heater restarted.

Working on gas heating in an Australian summer often means dealing with tight, hot roof spaces. Having reliable safety switches that you can trust to do their job is non-negotiable for system longevity and homeowner safety.

Best For

HVAC techs, gas fitters, and maintenance teams working on Braemar ducted gas heating systems.

Compatibility

This overtemp switch is designed specifically for Braemar ducted gas heaters and similar systems that require a 130-degree manual reset. It also cross-references as Seeley part number GH-266, so check your system's manual if you're working on Seeley units. If you're running a different model, check fittings and specs before ordering.

Features

• Genuine Braemar part or a high-quality compatible replacement.
• 130 Deg (Celsius) temperature rating for critical overheat protection.
• Manual reset function, ensuring an authorised person checks the fault before restarting.
• Specifically designed to detect flame roll-out conditions for enhanced safety.
• Cross-referenced as Seeley Part Number GH-266.

Technical Specifications

What's in the Box

• 1 x Braemar Overtemp Switch 130 Deg Manual Flame Roll Out (SYGH-266)

Using It on the Job

1. Isolate power and gas supply to the heating unit at the main switchboard and gas meter. Use a lockout/tagout procedure for safety.
2. Locate the existing overtemp switch, usually found near the heat exchanger or burner assembly on the heater.
3. Disconnect the wiring and carefully unmount the old switch. Pay attention to its orientation if it's specific.
4. Install the new SYGH-266 switch, ensuring it's securely mounted and wiring connections are tight and correct.
5. Restore power and gas supplies. Test the heating unit's operation, monitoring for proper startup and shutdown.
6. If the switch trips, always investigate and rectify the root cause of the overheat before simply resetting it.

Limitations & Safety Notes

• This switch is a safety device; it's not designed to be a primary operating control for the heating system.
• Installation and service of gas heating equipment should only be performed by a competent, licensed gas fitter or HVAC technician.
• Always follow the manufacturer's installation instructions and comply with all local gas regulations and Australian Standards.
• Ensure the fault condition (e.g., restricted airflow, dirty heat exchanger) that caused an overheat trip is identified and rectified before attempting to reset the switch.

When you're swapping one of these, always check the associated fan limit switch and the heat exchanger for blockages. A tripped overtemp switch is a symptom, not the root cause, so don't just reset it without a proper fault-find.

Pair With

Pair with other Braemar heating spares, gas valves, and diagnostic tools like digital manometers to keep ducted gas heaters running safely and efficiently.