This is the Vulcan Quasar Blue Dot Switch Fan Thermostat, SKU CT-BLUEDOTB. It's a critical replacement part for keeping those Vulcan Quasar wall furnace units running smoothly, especially as we head into another chilly Aussie winter. When a furnace fan won't kick in, often it's this little component that's causing the headache.

Designed as a direct replacement, this thermostat ensures your heating system maintains proper fan operation, pushing warm air into the room efficiently.

Best For

• HVAC service technicians
• Licensed gas fitters
• Competent DIY owners maintaining Vulcan Quasar wall furnaces

Compatibility

This switch fan thermostat is designed specifically for Vulcan Quasar wall furnace units. It suits the 26-30MJ (megajoule) models. This component also crosses over as Bonaire Part Number 5441602SP. If you're running a different model, check fittings and specs before ordering.

Features

• Direct replacement for Vulcan Quasar wall furnace units.
• Specifically designed for 26-30MJ Quasar models.
• Functions as a switch fan thermostat, controlling the furnace fan's operation.
• Genuine OEM part, also known by Bonaire PN 5441602SP.

What's in the Box

• 1x Vulcan Quasar Blue Dot Switch Fan Thermostat (CT-BLUEDOTB)

Using It on the Job

1. Always isolate power to the wall furnace at the main switchboard before starting any work. Use lockout/tagout procedures where appropriate.
2. Access the existing fan thermostat within the Vulcan Quasar unit, referring to the manufacturer's service manual. Note its wiring and mounting position.
3. Carefully disconnect the old thermostat, ensuring you photograph or diagram the wiring for correct reassembly.
4. Install the new CT-BLUEDOTB thermostat, ensuring all electrical connections are secure and correct according to the wiring diagram.
5. Double-check all wiring and ensure no tools or loose components are left inside the furnace compartment.
6. Restore power and test the furnace operation, verifying the fan engages and disengages as expected with the heating cycle.

Limitations & Safety Notes

• Only for use with compatible Vulcan Quasar 26-30MJ wall furnace units.
• All electrical and gas work must be performed by a licensed professional in accordance with Australian standards and local regulations.
• Always ensure power is isolated and verified before commencing any work on heating appliances.
• Refer to the specific Vulcan/Bonaire service manual for detailed installation instructions and safety warnings.

Tradie Pro Tip

Before you swap this out, always double-check the fan motor itself. Sometimes the thermostat gets blamed, but a seized fan bearing or a weak run capacitor is the real culprit, especially on older units. Save yourself a call-back.

Pair With

Pair with other genuine Bonaire heating spares or a quality multimeter for diagnosing electrical issues. Check out our range of diagnostic tools and flue gas analysers for your kit.