Honeywell Temperature sensor T1C20025 SO10060

The Honeywell T1C20025 SO10060 is an NTC temperature sensor designed for boiler and heating system controls. It provides accurate temperature measurement and control by transmitting temperature data to the control board. The sensor features a fast response to temperature changes and stable performance under various conditions, contributing to improved system energy efficiency. Its robust design ensures resistance to long-term operational loads, and it is available in immersion, clamp-on, or sleeve-mounted probe forms.

When selecting a replacement NTC temperature sensor of this kind, verify that the resistance characteristic (e.g., 10 kΩ or 12 kΩ at 25 °C) matches the control board's requirements. Also, ensure the physical probe form—immersion, clamp-on, or sleeve-mounted—is suitable for the installation point. Check the cable length and connector type to confirm compatibility with the existing wiring.

Typical failure modes for NTC sensors include a drifting resistance characteristic, which causes the boiler to modulate incorrectly, or a broken cable leading to no signal. Poor thermal contact between a clamp-on probe and the pipe surface can also result in inaccurate readings. Check the sensor's resistance at ambient temperature and inspect the cable and probe mounting for damage or poor contact.