Bradford White 243-50002-00 Thermostat

The Bradford White 243-50002-00 Thermostat serves as a critical OEM replacement part for high-efficiency water heating systems, providing accurate temperature regulation and safety monitoring. This specific gas water heater thermostat features an integrated thermistor assembly, ensuring precise resistance readings to communicate with the control board. As the direct updated version for 233-46038-00, this component is engineered to resolve common pilot lighting issues and erratic temperature fluctuations found in older iterations. For HVAC technicians, this Bradford White 243-50002-00 is an essential truck-stock item when servicing Defender Safety System models. The unit utilizes a surface-mount sensor to monitor tank surface temperatures, preventing overheating through a built-in energy cut-off (ECO) mechanism. Professional installation is required to ensure the immersion thermistor is seated correctly within the well, maintaining the thermal conductivity necessary for optimal thermal runaway protection and consistent hot water recovery rates.

Key Benefits

• Direct OEM Matching: Designed specifically for Bradford White inventory, eliminating fitment issues common with universal controls.
• Advanced Feedback: The thermistor probe provides millivolt-sensitive data to the gas valve for tighter differential control.
• Enhanced Reliability: Replaces the legacy 233-46038-00, utilizing improved internal circuitry to mitigate sensor drift.
• Integrated Safety: Features a high-limit thermal switch that interrupts the gas flow if temperatures exceed set parameters.

Common Questions

How do I troubleshoot a 243-50002-00 thermostat error code?
Technicians should check for continuity across the thermistor and verify that resistance values match the Bradford White temperature-to-resistance chart found in the service manual.

Will this thermostat fit my specific Bradford White model?
This part is the designated successor to the 233-46038-00. Check the rating plate on your tank to ensure compatibility with the Defender Safety System ignition series.

Why is the thermistor integrated into this unit?
The integrated design ensures that the control board receives accurate real-time data from a calibrated source, preventing communication errors between the tank and the gas control valve.

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.