Resideo 50001464-001 Sensor Assembly

The Resideo 50001464-001 Sensor Assembly is a precision-engineered 12-inch temperature sensor specifically designed as a direct replacement for L7224 and L7248 Series Aquastat controls. Also identified by part number 50001464-001/B, this Honeywell sensor assembly is a critical component for hydronic heating systems, providing the high-accuracy NTC thermistor feedback required for optimal boiler water temperature monitoring. This OEM replacement sensor ensures that the electronic aquastat correctly manages burner cycling and high-limit safety cut-offs, preventing thermal stress on the heat exchanger. As a veteran technician knows, maintaining proper sensor-to-well contact is vital; this 12-inch lead wire version provides the necessary reach for well-mounted controls while maintaining a stable signal to the L7248A, L7224A, and L7224C controllers. By utilizing genuine Resideo parts, you ensure full aquastat compatibility and prevent the diagnostic "Sensor Fault" or "Open Sensor" error codes common with aged or drifting secondary-market thermistors.

Key Benefits

• Precise Hydronic Control: Delivers accurate resistance-to-temperature data to Honeywell L7224 / L7248 electronic aquastats for high-efficiency operation.
• Direct OEM Fit: Guaranteed physical and electrical match to part number 50001464-001/B, ensuring clean terminal connections and stable impedance.
• Optimized Probe Length: The 12-inch sensor lead is ideal for standard immersion well configurations and recessed mounting applications.
• System Stability: Mitigates erratic burner firing and short-cycling by providing consistent, non-drifting temperature readings for hydronic boilers.
• Reliable Maintenance: Replaces failing immersion sensors that cause "High Limit" lockout errors or incorrect water temperature displays.

Common Questions

Is this sensor compatible with all L7224 models?
Yes, it is designed for the full range of Resideo/Honeywell L7224 (A, C) and L7248 (A, C, L) Oil Electronic Aquastat Controllers. Always verify the required probe length for your specific immersion well before installation.

How do I know if my existing sensor has failed?
Technicians should check for an "Err 1" or "Sensor" fault code on the digital display. You can verify failure by checking the resistance across the sensor leads with a multimeter and comparing it to the manufacturer’s NTC resistance chart; an open or shorted reading indicates a dead sensor.

What is the difference between 50001464-001 and 50001464-001/B?
There is no functional or physical difference; 50001464-001/B is simply the bulk packaging or updated SKU suffix for the same 12-inch sensor assembly.

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.