Brivis Transformer CSX 1.75A

This Brivis Transformer CSX 1.75A (BS80024702) is a replacement transformer for compatible Brivis CSX gas heater models. It converts 240V AC mains input to 24V AC output for the heater control circuit, helping supply the low-voltage power needed by compatible control components.

A failed transformer can leave the heater with no low-voltage control power, but the transformer should not be guessed by symptom alone. Loose wiring, shorted components, damaged control boards, power supply faults, or an overloaded 24V circuit can all create similar issues. Before ordering, confirm the original part number, current rating, input and output voltage, heater model, and fault path.

Best For

• HVAC service technicians replacing a confirmed faulty Brivis CSX 1.75A transformer.
• Licensed electricians or qualified technicians working on heater electrical control circuits.
• Licensed gas fitters servicing compatible Brivis gas ducted heaters where electrical control faults affect appliance operation.
• Compatible Brivis CSX heater systems where the original transformer matches BS80024702, 80024702, or B024702.

Compatibility

This Brivis Transformer is designed for compatible Brivis CSX series gas heaters. It is listed as HVAC Shop SKU BS80024702 and matches Brivis Part Numbers 80024702 and B024702 where the original transformer and heater application match. It is rated for 240V AC input, 24V AC output, and 1.75A current output.

If you are running a different model, check the original transformer label, heater data plate, wiring diagram, current rating, and voltage requirements 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, and heater compatibility.

Features

• Genuine Brivis Part: Matches Brivis part numbers 80024702 and B024702 where the original application matches.
• 240V to 24V AC Output: Converts mains input to low-voltage control power for compatible Brivis CSX heater control circuits.
• 1.75A Rating: Matches compatible Brivis CSX applications that require this exact current rating.
• Control Circuit Support: Helps supply power to compatible heater controls, relays, and low-voltage components.

Technical Specifications

What's in the Box

• 1 x Brivis Transformer CSX 1.75A (BS80024702)

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 power supply issue, or an overloaded 24V circuit.
2. Match the Part Number: Check the original transformer label and confirm BS80024702, 80024702, or B024702 before ordering.
3. Match the Electrical Rating: Confirm the replacement requires 240V AC input, 24V AC output, and 1.75A output. Do not substitute a different current rating unless the manufacturer information confirms it is suitable.
4. Check the Heater Data Plate: Confirm the heater model, wiring diagram, and control circuit requirements 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 24V 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 CSX gas heater models requiring BS80024702, 80024702, or B024702.
• Do not order by appearance alone. Match the original transformer label, heater data plate, voltage, current rating, 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.

Tradie Pro Tip

Before replacing a transformer, check what caused the original failure. Loose wiring, shorted 24V 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.