NTC 10K Temperature Sensor Probe | Gas Boiler Spare Part

NTC 10K Temperature Sensor Probe – Gas Wall-Hung Boiler Spare Part

Keep your gas wall-hung boiler or water heating system running at peak efficiency with this precision NTC 10K Temperature Sensor Probe. Designed as a direct replacement spare part, this compact sensor accurately monitors water temperature, helping your boiler's control system maintain consistent, reliable heating performance.

Key Features

• Resistance: 10K Ω (NTC thermistor) — the standard rating for most wall-hung gas boiler systems
• Materials: Durable Plastic + Metal construction for long-lasting performance
• Compact Size: Length 1.85 in / 4.7 cm — easy to install in tight spaces
• Color: Black & Red lead wires for easy identification
• No battery required — passive sensor, powered by the boiler's control board
• Compatible with a wide range of gas wall-hung boilers and water heating systems

Specifications

What's in the Box

• 1 × NTC 10K Temperature Sensor Probe

Important Notes

• Product images are for illustration purposes only — please refer to the written specifications for exact dimensions.
• Slight measurement variations may occur due to manual measuring methods.
• Actual color may vary slightly from screen to screen.
• Always verify compatibility with your specific boiler model before installation. If you are unsure, consult a qualified heating technician.

Installation & Safety

Installing or replacing components in a gas boiler system should always be performed by a licensed or qualified heating engineer. For guidance on safe appliance servicing and home heating safety, refer to the U.S. Consumer Product Safety Commission – Carbon Monoxide & Heating Safety.

Frequently Asked Questions

Q: What is an NTC 10K temperature sensor and how does it work in a boiler?

A: An NTC (Negative Temperature Coefficient) 10K thermistor is a resistor whose electrical resistance decreases as temperature increases. In a gas wall-hung boiler, the control board reads the sensor's resistance value to determine the current water temperature, then adjusts the burner accordingly to maintain the set temperature. The "10K" refers to the sensor's resistance at 25°C (77°F).

Q: How do I know if this sensor is compatible with my boiler?

A: This sensor is designed for gas wall-hung boilers and water heating systems that use a standard NTC 10K thermistor probe. Check your boiler's service manual or existing sensor label for the resistance rating. If it reads 10K, this probe is likely a compatible replacement. When in doubt, consult a qualified heating technician before purchasing.

Q: Can I install this temperature sensor myself?

A: While the sensor itself is a simple electronic component, replacing parts inside a gas boiler involves working with gas lines and high-voltage components. It is strongly recommended that installation be carried out by a certified heating engineer or qualified technician to ensure safety and proper function.

Q: What tools are needed to replace the temperature sensor probe?

A: Typically, you will need a screwdriver set and possibly pliers to disconnect the old sensor and reconnect the new one. However, the exact tools required depend on your specific boiler model. Always power down and isolate the boiler before beginning any maintenance work.