Brivis Gas Heater Transformer 24V-240V, 2.25A

This Brivis Gas Heater Transformer 24V-240V 2.25A (BS80021729) is a replacement transformer for compatible Brivis gas heating systems. It helps supply the low-voltage control power required by compatible heater control boards and related components where the original transformer specification matches.

A failing transformer can cause inconsistent operation, no low-voltage control power, or complete system shutdown. Before ordering, confirm the original transformer label, Brivis part number, voltage rating, current rating, heater model, and fault path. Loose wiring, a shorted low-voltage component, a failed control board, moisture damage, or an overloaded circuit can all create symptoms that look like a failed transformer.

Best For

• HVAC service technicians replacing a confirmed faulty Brivis 2.25A transformer.
• Licensed electricians or qualified technicians working on heater electrical control circuits.
• Gas heating installers and service teams matching the original transformer by part number and electrical rating.
• Compatible Brivis gas heating systems where the original transformer matches BS80021729, 80021729, or B021729.

Compatibility

This Brivis transformer is designed for compatible Brivis gas heating systems that require the matched 24V-240V, 2.25A transformer specification. It is listed as HVAC Shop SKU BS80021729 and matches Brivis Part Numbers 80021729 and B021729 where the original transformer and heater application match.

If you are running a different model, check the original transformer label, heater data plate, wiring diagram, voltage rating, current rating, and connection layout before ordering. Do not order by appearance alone.

Need help choosing? Read our guide on how to identify the correct Brivis transformer before ordering to confirm the correct part number, voltage, current rating, wiring layout, and heater compatibility.

Features

• Genuine Brivis Replacement: Matches Brivis part numbers 80021729 and B021729 where the original application matches.
• 24V-240V Transformer Specification: Designed for compatible Brivis heater control circuits that require this matched voltage specification.
• 2.25A Rating: Matches compatible Brivis heater applications that require this exact current rating.
• Control Circuit Support: Helps supply stable control power to compatible boards, controls, relays, and related low-voltage components.

Technical Specifications

What's in the Box

• 1 x Brivis Gas Heater Transformer 24V-240V 2.25A (BS80021729)

Installation Notes

1. Confirm the Fault: A qualified technician should confirm whether the transformer is faulty or whether the issue is caused by loose wiring, a shorted low-voltage component, a failed control board, a supply issue, moisture damage, or an overloaded circuit.
2. Match the Part Number: Check the original transformer label and confirm BS80021729, 80021729, or B021729 before ordering.
3. Match the Electrical Rating: Confirm the transformer voltage specification and 2.25A current rating. Do not substitute a different transformer unless manufacturer information confirms it is suitable.
4. Check the Heater Data Plate: Confirm the heater model, wiring diagram, control circuit requirements, and terminal layout before fitting the replacement transformer.
5. Fit According to Manufacturer Information: The replacement transformer should be installed using the correct Brivis service information and wiring documentation for the specific heater model.
6. Test Heater Operation: After installation, the technician should confirm safe control power, control board operation, ignition sequence, and full heater function before returning the unit to service.

Limitations & Safety Notes

• This transformer is only for compatible Brivis gas heating systems requiring BS80021729, 80021729, or B021729.
• Do not order by appearance alone. Match the original transformer label, heater data plate, voltage rating, current rating, connection layout, and wiring requirements before ordering.
• Electrical work should be carried out by a licensed electrician or qualified HVAC technician where required.
• Gas appliance servicing and any work that affects heater operation or commissioning should be handled by appropriately licensed tradespeople.
• Always confirm power is isolated before electrical access, testing, or component replacement.
• Follow the manufacturer's installation information and relevant Australian gas and electrical safety requirements.
• If the original transformer failed from a short, overload, moisture ingress, heat damage, or control board issue, the underlying fault must be corrected before the heater is returned to service.

Before replacing a transformer, check what caused the original failure. Loose wiring, shorted control components, moisture, heat damage, or a failing control board can damage a new transformer quickly if the underlying fault is still present.

Pair With

Pair with compatible Brivis control boards, wall controllers, pressure switches, thermocouples, pilot assemblies, gas valves, wiring components, and diagnostic tools when completing a full heater fault diagnosis. Always confirm the exact electrical fault before replacing transformer or control components.