Bradford White 239-49791-00 Sensor Switch
The Bradford White 239-49791-00 is an OEM Flammable Vapor (FV) Sensor Switch Harness designed specifically for the Defender Safety System. As a critical safety component, this harness facilitates real-time monitoring of potential flammable vapor accumulations near the water heater base. When the resistive sensor detects high levels of volatile organic compounds, it sends a signal to the gas control valve to lock out the burner, preventing accidental ignition. This replacement sensor switch is essential for maintaining FVIR (Flammable Vapor Ignition Resistant) compliance in high-demand residential and light commercial settings.
This HVAC water heater part is engineered for a precise fit in Bradford White TTW (Through-the-Wall) models, including the TTW1 and TTW2 series, as well as M1TW, M2TW, and M4TW energy saver units. For compatibility verification, ensure your unit's serial number starts with "KA" or later. The 239-49791-00 harness features a high-grade conductive lead and a robust connector housing to withstand the thermal stressors found within the cabinet. Proper mechanical integration ensures the sensor maintains the specific ohm readings required for the control module to function without nuisance tripping.
Key Benefits- Ensures FVIR safety compliance by detecting flammable vapors before ignition.
- Direct OEM replacement part ensures exact electrical resistance and plug-and-play harness fitment.
- Compatible with a wide range of Bradford White power vent and through-the-wall models.
- Critical for resolving sensor lockout codes and restoring gas valve operation.
Is this sensor switch universal for all Bradford White models?
No, this specific version is designed for FVIR gas water heaters with serial numbers starting with KA or later. Always check your rating plate for part number 239-49791-00 before installation.
What causes a sensor switch to trigger a lockout?
The sensor is designed to trip if it detects gasoline, paint thinner, or other flammable vapors. However, environmental factors such as high humidity or cleaning chemicals can also affect sensor resistance, necessitating a diagnostic check or replacement.
How do I test the 239-49791-00 harness?
Technicians should use a multi-meter to check the resistance (ohms) across the sensor leads. Significant deviations from the manufacturer's specified range typically indicate a failed sensor that requires a genuine Bradford White replacement.
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: $11.07
-65%$11.07
$3.87Bradford White 239-49791-00 Sensor Switch
The Bradford White 239-49791-00 is an OEM Flammable Vapor (FV) Sensor Switch Harness designed specifically for the Defender Safety System. As a critical safety component, this harness facilitates real-time monitoring of potential flammable vapor accumulations near the water heater base. When the resistive sensor detects high levels of volatile organic compounds, it sends a signal to the gas control valve to lock out the burner, preventing accidental ignition. This replacement sensor switch is essential for maintaining FVIR (Flammable Vapor Ignition Resistant) compliance in high-demand residential and light commercial settings.
This HVAC water heater part is engineered for a precise fit in Bradford White TTW (Through-the-Wall) models, including the TTW1 and TTW2 series, as well as M1TW, M2TW, and M4TW energy saver units. For compatibility verification, ensure your unit's serial number starts with "KA" or later. The 239-49791-00 harness features a high-grade conductive lead and a robust connector housing to withstand the thermal stressors found within the cabinet. Proper mechanical integration ensures the sensor maintains the specific ohm readings required for the control module to function without nuisance tripping.
Key Benefits- Ensures FVIR safety compliance by detecting flammable vapors before ignition.
- Direct OEM replacement part ensures exact electrical resistance and plug-and-play harness fitment.
- Compatible with a wide range of Bradford White power vent and through-the-wall models.
- Critical for resolving sensor lockout codes and restoring gas valve operation.
Is this sensor switch universal for all Bradford White models?
No, this specific version is designed for FVIR gas water heaters with serial numbers starting with KA or later. Always check your rating plate for part number 239-49791-00 before installation.
What causes a sensor switch to trigger a lockout?
The sensor is designed to trip if it detects gasoline, paint thinner, or other flammable vapors. However, environmental factors such as high humidity or cleaning chemicals can also affect sensor resistance, necessitating a diagnostic check or replacement.
How do I test the 239-49791-00 harness?
Technicians should use a multi-meter to check the resistance (ohms) across the sensor leads. Significant deviations from the manufacturer's specified range typically indicate a failed sensor that requires a genuine Bradford White replacement.
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
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Shipping & Returns
Description
The Bradford White 239-49791-00 is an OEM Flammable Vapor (FV) Sensor Switch Harness designed specifically for the Defender Safety System. As a critical safety component, this harness facilitates real-time monitoring of potential flammable vapor accumulations near the water heater base. When the resistive sensor detects high levels of volatile organic compounds, it sends a signal to the gas control valve to lock out the burner, preventing accidental ignition. This replacement sensor switch is essential for maintaining FVIR (Flammable Vapor Ignition Resistant) compliance in high-demand residential and light commercial settings.
This HVAC water heater part is engineered for a precise fit in Bradford White TTW (Through-the-Wall) models, including the TTW1 and TTW2 series, as well as M1TW, M2TW, and M4TW energy saver units. For compatibility verification, ensure your unit's serial number starts with "KA" or later. The 239-49791-00 harness features a high-grade conductive lead and a robust connector housing to withstand the thermal stressors found within the cabinet. Proper mechanical integration ensures the sensor maintains the specific ohm readings required for the control module to function without nuisance tripping.
Key Benefits- Ensures FVIR safety compliance by detecting flammable vapors before ignition.
- Direct OEM replacement part ensures exact electrical resistance and plug-and-play harness fitment.
- Compatible with a wide range of Bradford White power vent and through-the-wall models.
- Critical for resolving sensor lockout codes and restoring gas valve operation.
Is this sensor switch universal for all Bradford White models?
No, this specific version is designed for FVIR gas water heaters with serial numbers starting with KA or later. Always check your rating plate for part number 239-49791-00 before installation.
What causes a sensor switch to trigger a lockout?
The sensor is designed to trip if it detects gasoline, paint thinner, or other flammable vapors. However, environmental factors such as high humidity or cleaning chemicals can also affect sensor resistance, necessitating a diagnostic check or replacement.
How do I test the 239-49791-00 harness?
Technicians should use a multi-meter to check the resistance (ohms) across the sensor leads. Significant deviations from the manufacturer's specified range typically indicate a failed sensor that requires a genuine Bradford White replacement.
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.
