Bradford White 415-43676-02 Limit Switch

The Bradford White 415-43676-02 Limit Switch is a critical safety component engineered for high-temperature monitoring in residential and commercial atmospheric water heaters. As a direct factory replacement for legacy part numbers 239-43676-02 and 239-43676-02C, this L270F manual reset limit switch ensures precise thermal cut-off performance. Designed to open at 270°F, it serves as a fail-safe against overheating conditions within the combustion chamber or flue collector. This OEM water heater part features a manual reset mechanism, requiring a technician to inspect the system for venting or flame rollout issues before restoration. For contractors performing tank water heater repair, this switch provides exact electrical continuity specifications and mounting alignment for Bradford White Defender Safety System models. Utilizing genuine Bradford White replacement parts ensures the manifold pressure and thermal safety parameters remain within original manufacturer tolerances for reliable long-term operation.

Key Benefits

• Precise Thermal Protection: Fixed 270° Fahrenheit trip point prevents tank damage and hazardous operating conditions.
• Direct OEM Fit: Drop-in compatibility for Bradford White 239-43676-02 enables fast field installation without bracket modification.
• Manual Reset Safety: Prevents automatic cycling of a compromised unit, forcing an inspection of the combustion system.
• High-Temperature Durability: Constructed with materials rated for the intensive heat cycles of gas-fired water heaters.

Common Questions

How do I know if my 415-43676-02 limit switch has tripped?
If the water heater is not heating and there is no continuity across the switch terminals during a multi-meter test, the L270F limit switch has likely tripped due to excessive internal temperatures.

Is this switch compatible with older Bradford White Defender models?
Yes, this is the official replacement limit switch for several generations of the Defender series, including those using the 239-43676-02C part number.

What causes this limit switch to trip frequently?
Frequent tripping is often indicative of flame rollout, restricted venting, or a clogged ScreenCheck flame arrestor, all of which cause heat to build up near the switch mounting point.

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.