Replacement Trane SEN01107 Thermistor Sensor, -40 to 65C Temperature Range, 0.25" Diameter, 12 Month Warranty & US Based Support

Restore dependable HVAC temperature monitoring with the Wholesale Sensors Replacement for Trane SEN01107 Thermistor Sensor with 12-Inch Leads, backed by a strong 12-Month Warranty and responsive US based product support. Designed for compatible Trane and American Standard HVAC equipment, this replacement temperature sensor provides the changing electrical resistance required by the equipment control system to monitor temperature and make temperature-based operating decisions.

The Trane SEN01107 is an HVAC thermistor sensor specified for an operating temperature range of -40°C to 65°C. Trane Supply identifies the original sensor as a thermistor with a 0.25-inch diameter, 1.75-inch length, and 12-inch terminated brown leads. These specifications make it important to verify more than just the general appearance of a replacement sensor when servicing HVAC equipment.

This Wholesale Sensors component is engineered as a perfect OEM-style replacement designed to meet or exceed OEM specifications for compatible SEN01107 applications. The primary manufacturer reference is SEN01107. SupplyHouse confirms that SEN01107 directly replaces the older SEN1107 and SEN00278 references.

Additional Trane and American Standard parts references associate SEN01107 with several older or superseded numbers, including SEN00275, SEN00321, SEN00339, SEN00372, SEN00378, SEN00379, SEN00642, and SEN00905. Depending on the age of the equipment and the parts documentation being used, one of these older references may appear instead of the current SEN01107 number.

The sensor is designed for use in compatible air conditioning and HVAC equipment. Repair Clinic identifies SEN01107 for both central air conditioner and heat pump applications, while Trane parts sources show the thermistor across multiple commercial and packaged HVAC configurations.

Verified equipment applications include select Trane TTA Series units such as TTA061DD00AA, TTA061DD0RAA, and TTA061DD0SAA. Other parts references identify SEN01107 in equipment such as TSC043G3EBA, YSC036G3RYB, YSC102F4RHA, and THC072F3E0A.

The sensor is also listed within Trane TSC equipment such as TSC072AWECA. Because Trane has produced many HVAC configurations and equipment revisions, customers should always verify the complete model number and original sensor part number before ordering.

Compatibility should not be determined solely by equipment brand, physical appearance, or approximate age. Trane HVAC systems can contain several different temperature sensors, and individual thermistors may have different electrical characteristics, mounting arrangements, lead lengths, or intended sensing positions.

The SEN01107 is a thermistor, meaning its electrical resistance changes as temperature changes. Repair Clinic describes this type of Trane thermistor as a sensor connected to the control board that detects air temperature. As air temperature changes, the sensor’s resistance changes, allowing the control system to interpret the temperature condition.

This changing resistance is what makes the sensor useful for HVAC control and diagnostics. Instead of functioning as a basic on-off temperature switch, the thermistor provides a continuously changing electrical response corresponding to temperature.

The SEN01107 is rated to operate from -40°C to 65°C, providing a broad temperature range for HVAC applications. Its physical specifications include a 0.25-inch diameter and approximately 1.75-inch probe length. The original configuration uses 12-inch brown leads with terminated ends, helping provide an application-specific connection for compatible equipment.

When a thermistor deteriorates, becomes electrically open or shorted, or develops an intermittent connection, the HVAC controller may no longer receive accurate temperature information. Depending on the equipment and sensor position, possible symptoms can include incorrect temperature feedback, intermittent temperature readings, unexpected equipment operation, temperature control problems, or controller diagnostic indications.

However, an abnormal temperature reading does not automatically mean the SEN01107 thermistor has failed. HVAC temperature control depends on several components working together. Problems can also originate from damaged wiring, corroded terminals, loose connectors, poor airflow, control board problems, configuration issues, other temperature sensors, or related HVAC components.

Proper diagnosis is therefore recommended before replacing the sensor.

Start by inspecting the original thermistor and its wiring. Look for damaged insulation, broken wires, loose terminals, corrosion, moisture intrusion, overheated connections, damaged connectors, or physical damage to the sensing probe. A poor electrical connection can produce an incorrect or intermittent temperature signal even when the thermistor itself remains functional.

A thermistor can also be tested electrically using an appropriate digital multimeter. Repair Clinic notes that resistance should change as the thermistor’s temperature changes. If the sensor has no continuity or its resistance does not respond appropriately to a temperature change, the thermistor may require replacement. The measured values should be compared with the correct temperature and resistance specifications for the equipment being serviced.

Do not assume that all HVAC thermistors have the same resistance curve. Two sensors can have similar dimensions while providing different electrical responses. Using an incorrect sensor can cause inaccurate temperature information even if it physically fits the equipment.

Installation should begin by disconnecting electrical power to the HVAC equipment according to the manufacturer’s service procedures. HVAC systems can contain hazardous line voltage, capacitors, moving components, and other electrical hazards, so qualified HVAC personnel should perform service when appropriate.

Locate the original SEN01107 or superseded thermistor and document its mounting position, probe orientation, wire routing, and terminal connections before removal. This information helps ensure that the replacement is installed in the intended temperature-sensing location.

Carefully disconnect the existing sensor without pulling directly on its leads. Inspect the mating wiring and terminals for corrosion, looseness, overheating, or physical damage. Correct damaged wiring or connections before installing the replacement sensor.

Install the new thermistor in the same intended sensing location. Proper placement is important because even a correctly functioning sensor can report misleading temperature information when positioned in the wrong airflow area or too close to a heat-producing component.

Route the 12-inch leads according to the original configuration and protect the wiring from sharp sheet-metal edges, moving components, and inappropriate contact with high-temperature surfaces. Make sure electrical connections are secure before reinstalling equipment panels.

After installation, restore power according to the equipment manufacturer’s procedures and verify operation. If the HVAC controller provides sensor readings through a service interface, compare the displayed temperature with an independent temperature measurement when practical.

If the temperature reading remains abnormal after replacement, continue diagnosing the sensor wiring, control board input, airflow, controller configuration, and related HVAC components rather than automatically assuming the new sensor is defective.

HVAC equipment does not use automotive OBD-II diagnostic trouble codes, so automotive codes such as P0117 or P0118 do not apply to the Trane SEN01107. Trane equipment may instead provide model-specific HVAC alarms or diagnostic indications. Always consult the service documentation for the exact equipment model when interpreting a fault.

Each Wholesale Sensors SEN01107 replacement is built for dependable HVAC temperature monitoring and is rigorously tested for resistance response, temperature sensing performance, electrical continuity, connection integrity, and reliability. Its -40°C to 65°C temperature range, 0.25-inch diameter by 1.75-inch sensor body, and 12-inch lead configuration are designed around the specifications associated with the original Trane sensor.

Wholesale Sensors specializes in aftermarket sensing components for HVAC equipment, commercial refrigeration, appliances, pool and spa systems, automotive applications, RV equipment, commercial foodservice systems, and industrial equipment.

Every Wholesale Sensors Replacement for Trane SEN01107 Thermistor Sensor with 12-Inch Leads is backed by a strong 12-Month Warranty and responsive US based product support. Before ordering, verify your equipment model, sensor position, lead configuration, and original SEN01107 or applicable superseded part number.

With confirmed compatibility, this replacement provides dependable temperature feedback, application-specific dimensions, a broad -40°C to 65°C operating range, rigorously tested performance, and a practical solution for restoring accurate temperature sensing in compatible Trane and American Standard HVAC systems.