Bonaire Vulcan Gas Heater Flame Sensor Long 50mm

This Bonaire Vulcan gas heater flame sensor is a critical spare part for HVAC techs and competent DIYers, ensuring your heating system ignites reliably. In the cooler Australian months, you need your ducted gas heater running right, and a faulty flame sensor can stop it dead.

I've seen plenty of nuisance call-outs just because a flame sensor was gunked up or had a weak signal; replacing it often sorts out intermittent ignition faults.

Best For

• Bonaire Vulcan gas heaters
• HVAC service and maintenance teams
• Gas appliance technicians
• Competent DIY home heating maintenance

Compatibility

This flame sensor is a direct replacement for Bonaire Vulcan gas heaters that require a 50mm long, "new style" flame sensor. It corresponds to Bonaire part number 5121605SP. If you're running a different model, check fittings and specs before ordering.

Features

• Direct replacement for specific Bonaire Vulcan gas heater models.
• "New Style" probe design for reliable flame signal detection.
• 50mm length suitable for the intended applications.
• Essential component for safe and efficient gas ignition sequences.

Technical Specifications

What's in the Box

• 1 x Bonaire Vulcan Gas Heater Flame Sensor (50mm, new style)

Using It on the Job

1. Isolate power to the gas heater at the main switchboard and ensure gas supply is turned off at the isolation valve.
2. Locate the existing flame sensor in the burner assembly. Take note of its exact position and how it's connected.
3. Carefully disconnect the wiring and remove the old sensor, ensuring not to damage any surrounding components.
4. Install the new Bonaire 50mm flame sensor, securing it properly and reconnecting the wiring as it was.
5. Restore gas and power to the unit, then test the heater's ignition sequence. Monitor for consistent flame detection and proper operation.
6. Perform a gas leak check around any disturbed gas connections using appropriate detection methods.

Limitations & Safety Notes

• Only compatible with the specified Bonaire Vulcan gas heater models.
• Installation and servicing of gas appliances in Australia must be carried out by a licensed gas fitter.
• Always isolate electrical power and turn off the gas supply before commencing any work on heating systems.
• Adhere to all relevant Australian standards and Safe Work guidance for gas appliance maintenance.

Before you swap out a flame sensor, give the old one a good clean with some fine steel wool. Sometimes, carbon build-up is all that's stopping it from doing its job, saving you a trip or a new part.

Pair With

Pair with gas leak detection fluid, a quality multimeter, and a pressure gauge for comprehensive diagnostics when troubleshooting gas heater issues.