Honeywell ASY964 cable

The ASY964 is a connection cable used with temperature sensor components such as NTC probes, immersion sensors, clamp-on sensors, or mechanical thermostats. In a boiler or burner system, these sensors close the control loop by reporting flow, return, cylinder, or outdoor temperature to the burner control board. Cables of this type link the sensor element to the control electronics and must maintain a reliable electrical connection to ensure correct temperature signalling. When selecting a replacement cable, the primary parameters are connector type on both ends, wire gauge, number of conductors, and overall length. The cable must match the sensor’s termination (e.g., spade terminals, plug, or flying leads) and the control board’s input socket. For NTC sensors, the cable’s resistance contribution should be negligible compared to the sensor’s characteristic (typical 10 kΩ or 12 kΩ at 25 °C). Common failures include broken conductors, corrosion at the connectors, or intermittent contact that causes erratic burner modulation or false temperature readings. When replacing a sensor cable, inspect the connector housings for damage and ensure the cable routing avoids sharp edges, hot surfaces, or moving parts. The part is listed under manufacturer code ASY964 and catalogue article 534.298.015. No further technical specifications for this specific cable are provided in the source data.