ClimateMaster 17B0008N05 Thermistor

The ClimateMaster 17B0008N05 Thermistor is a critical NTC 10kOhm temperature sensor designed for precise thermal monitoring within geothermal heat pump systems and advanced MPC controllers. Built to withstand demanding HVAC environments, this white-lead thermistor delivers accurate resistance feedback to the main control board, ensuring optimal refrigerant flow and compressor protection. When diagnosing HVAC sensor errors or fluctuating discharge temperatures, replacing a drifted or failed probe with this genuine OEM ClimateMaster part restores factory-spec communication between the sensing point and the MPC logic. This sensor is fully compatible with a range of water-source heat pumps and serves as a reliable replacement for outdated 17B0008N03 or AST009 components. Techs should note that its high-accuracy 10K curve is essential for maintaining system efficiency and preventing unnecessary high-pressure lockouts or coil freeze-ups.

• OEM Precision: Genuine ClimateMaster 17B0008N05 ensures exact calibration for MPC and heat pump applications.
• Technical Specifications: Standard 10kOhm resistance at 25°C (77°F) with a durable NTC (Negative Temperature Coefficient) design.
• Broad Compatibility: Directly replaces and upgrades 17B0008N03 and AST009 sensors in existing installations.
• System Protection: Provides the high-resolution data necessary for the controller to prevent frost accumulation and compressor overheating.
• Rugged Construction: Engineered to provide stable readings across a wide temperature range in commercial and residential heat pumps.

Is this thermistor compatible with non-ClimateMaster systems?
While 10k NTC sensors are common, this part is specifically calibrated for ClimateMaster MPC logic. Using a generic sensor may result in resistance offsets that cause improper system cycling or error codes.

What are the symptoms of a failing 17B0008N05 sensor?
Look for erratic temperature readings on the diagnostic tool, frequent "Sensor Out of Range" faults, or the system failing to engage heating/cooling modes despite proper setpoints.

Where is this sensor typically located?
Depending on the unit configuration, it is often utilized as a return air, discharge air, or water-coil temperature probe within the HVAC cabinet.

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.