Braemar TH 435 Gas Heater Fan Resistor

This genuine Braemar TH 435 fan resistor is a critical component for restoring correct fan speed control in compatible Braemar gas ducted heaters. When the fan speed isn't cycling right or stops altogether, a faulty resistor is often the culprit, especially after years of consistent use in Australian conditions.

Keeping your customer's heater running smoothly means keeping them comfortable, and replacing this resistor gets the job done reliably, ensuring consistent airflow through the ducts.

Best For

• HVAC Technicians troubleshooting Braemar ducted heaters.
• Gasfitters performing maintenance and repairs on Braemar systems.
• HVAC Apprentices learning gas ducted heater diagnostics.

Compatibility

This fan resistor (PN. 611570) is designed for specific Braemar gas ducted heater models:

• NG Heaters: TG4-35
• LPG Heaters: TG4-30/X, TG5-22/X

Always double-check your heater's model number and existing part before ordering to ensure a precise fit. If you're running a different model, check fittings and specs before ordering.

Features

• Genuine Braemar Part: Ensures direct fitment and reliable performance as per original equipment specifications.
• Specific Rating: Rated PW50 WF2 500 OHM, matching the exact requirements for specified Braemar TH 435 series heaters.
• Restores Fan Control: Replaces a faulty resistor to bring back proper multi-speed fan operation, improving heating efficiency.
• Robust Construction: Built to withstand the typical operating conditions within a ducted heating unit.

Technical Specifications

What's in the Box

• 1 x Braemar TH 435 Gas Heater Fan Resistor (PN. 611570)

Using It on the Job

1. Isolate Power: Always shut down and lock out power to the heater at the mains and isolation switch before beginning any work.
2. Access Panel: Locate and remove the appropriate service access panel on the Braemar ducted heater to expose the fan control area.
3. Identify Resistor: Pinpoint the existing fan resistor, noting its connections. Take a photo if it helps for reassembly.
4. Disconnect Wiring: Carefully disconnect the wiring from the old resistor, paying attention to terminal positions.
5. Remove & Replace: Unmount the faulty resistor and install the new Braemar TH 435 fan resistor (PN. 611570) in its place, ensuring it's securely fastened.
6. Reconnect Wiring: Reattach the wiring to the new resistor correctly. Double-check all connections are snug.
7. Test Operation: Restore power and test the heater's fan operation across all speed settings to confirm the resistor is functioning correctly.

Limitations & Safety Notes

• This part is for specified Braemar TH 435 series gas ducted heaters only. Check your model number carefully.
• Installation of gas, water, and electrical parts must be performed by a qualified professional to ensure safety and maintain warranty validity.
• Always follow manufacturer's instructions and relevant Australian standards for safe installation and operation.
• Electronic components like resistors are sensitive. Refunds are generally only issued for unopened items in their original, tamper-evident packaging.

Tradie Pro Tip: Before pulling out the multimeter, check for any obvious signs of overheating or burnt traces on the existing resistor. Sometimes the fault is clear visually, saving you diagnostic time on a hot rooftop.

Pair With

Consider pairing this resistor with other Braemar spare parts or an electrical multimeter for diagnostics. A good set of insulated hand tools is also essential for safe electrical work.