Bradford White 239-45949-00 Resistance Device
The Bradford White 239-45949-00 Resistance Device is a critical diagnostic and operational component designed for water heater troubleshooting and control circuit validation. Functioning as a simulated resistance device, this OEM part mimics the electrical load of heating elements, allowing service technicians to verify the integrity of the gas control valve and safety circuits without energizing the main burners. It is engineered with low thermal drift for high operational stability, ensuring that resistance values remain within the precise 3,000 to 70,000 Ohm window required by the logic board.
This harness-style assembly is specifically utilized in Bradford White power vent and high-efficiency models, including the M1TW, M2TW, and TW4 series. When the control system detects a resistance fault outside of the calibrated range, it triggers specific LED diagnostic codes—most notably the 7-flash or 8-flash sequence—to prevent unsafe operation or flammable vapor lockout. Using this genuine Bradford White replacement part ensures seamless integration with the existing safety circuit, providing the exact feedback signals necessitated by the factory combustion system for reliable performance and accurate fault diagnosis.
Key Benefits- OEM Compatibility: Exact electrical match for Bradford White M1TW, M2TW, and TW4 serial series.
- Diagnostic Accuracy: Eliminates guesswork by providing a stable resistance simulation for control board testing.
- System Protection: Critical for preventing improper lockout cycles and ensuring the safety circuit closes correctly.
- Durable Construction: Built with high-grade materials to withstand the thermal demands of the water heater cabinet.
- What does a 7-flash code mean on my Bradford White heater? This typically suggests a Simulated Resistance Device fault where the resistance is detected above 70,000 Ohms, causing the control to shut down outputs.
- Can I bypass this resistive device? No. The gas control monitors this specific resistance range to ensure the safety circuit is functioning; bypassing it will lead to a permanent lockout.
- Is this compatible with the Defender Safety System? Yes, this part is designed to work within the enhanced diagnostic frameworks of models featuring the Defender and spark-to-pilot ignition systems.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $19.91
-65%$19.91
$6.97Bradford White 239-45949-00 Resistance Device
The Bradford White 239-45949-00 Resistance Device is a critical diagnostic and operational component designed for water heater troubleshooting and control circuit validation. Functioning as a simulated resistance device, this OEM part mimics the electrical load of heating elements, allowing service technicians to verify the integrity of the gas control valve and safety circuits without energizing the main burners. It is engineered with low thermal drift for high operational stability, ensuring that resistance values remain within the precise 3,000 to 70,000 Ohm window required by the logic board.
This harness-style assembly is specifically utilized in Bradford White power vent and high-efficiency models, including the M1TW, M2TW, and TW4 series. When the control system detects a resistance fault outside of the calibrated range, it triggers specific LED diagnostic codes—most notably the 7-flash or 8-flash sequence—to prevent unsafe operation or flammable vapor lockout. Using this genuine Bradford White replacement part ensures seamless integration with the existing safety circuit, providing the exact feedback signals necessitated by the factory combustion system for reliable performance and accurate fault diagnosis.
Key Benefits- OEM Compatibility: Exact electrical match for Bradford White M1TW, M2TW, and TW4 serial series.
- Diagnostic Accuracy: Eliminates guesswork by providing a stable resistance simulation for control board testing.
- System Protection: Critical for preventing improper lockout cycles and ensuring the safety circuit closes correctly.
- Durable Construction: Built with high-grade materials to withstand the thermal demands of the water heater cabinet.
- What does a 7-flash code mean on my Bradford White heater? This typically suggests a Simulated Resistance Device fault where the resistance is detected above 70,000 Ohms, causing the control to shut down outputs.
- Can I bypass this resistive device? No. The gas control monitors this specific resistance range to ensure the safety circuit is functioning; bypassing it will lead to a permanent lockout.
- Is this compatible with the Defender Safety System? Yes, this part is designed to work within the enhanced diagnostic frameworks of models featuring the Defender and spark-to-pilot ignition systems.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Bradford White 239-45949-00 Resistance Device is a critical diagnostic and operational component designed for water heater troubleshooting and control circuit validation. Functioning as a simulated resistance device, this OEM part mimics the electrical load of heating elements, allowing service technicians to verify the integrity of the gas control valve and safety circuits without energizing the main burners. It is engineered with low thermal drift for high operational stability, ensuring that resistance values remain within the precise 3,000 to 70,000 Ohm window required by the logic board.
This harness-style assembly is specifically utilized in Bradford White power vent and high-efficiency models, including the M1TW, M2TW, and TW4 series. When the control system detects a resistance fault outside of the calibrated range, it triggers specific LED diagnostic codes—most notably the 7-flash or 8-flash sequence—to prevent unsafe operation or flammable vapor lockout. Using this genuine Bradford White replacement part ensures seamless integration with the existing safety circuit, providing the exact feedback signals necessitated by the factory combustion system for reliable performance and accurate fault diagnosis.
Key Benefits- OEM Compatibility: Exact electrical match for Bradford White M1TW, M2TW, and TW4 serial series.
- Diagnostic Accuracy: Eliminates guesswork by providing a stable resistance simulation for control board testing.
- System Protection: Critical for preventing improper lockout cycles and ensuring the safety circuit closes correctly.
- Durable Construction: Built with high-grade materials to withstand the thermal demands of the water heater cabinet.
- What does a 7-flash code mean on my Bradford White heater? This typically suggests a Simulated Resistance Device fault where the resistance is detected above 70,000 Ohms, causing the control to shut down outputs.
- Can I bypass this resistive device? No. The gas control monitors this specific resistance range to ensure the safety circuit is functioning; bypassing it will lead to a permanent lockout.
- Is this compatible with the Defender Safety System? Yes, this part is designed to work within the enhanced diagnostic frameworks of models featuring the Defender and spark-to-pilot ignition systems.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
