Carrier HH79EZ003 Discharge Line Thermistor (DTT) Temperature Sensor

Description

The Carrier HH79EZ003 is an OEM discharge line thermistor (DTT) designed as a direct replacement for Carrier heating and cooling systems. This temperature-sensing component monitors compressor discharge line temperatures, providing critical data to the system control board to protect the compressor from overheating and ensure safe, efficient operation.

Key Features

• OEM Carrier replacement discharge line thermistor (DTT)
• Monitors compressor discharge line temperature for system protection
• Sends real-time temperature data to the system control board
• Helps prevent compressor damage caused by excessive discharge temperatures
• Direct drop-in replacement for compatible Carrier systems
• Designed for reliable, long-term performance in residential and light commercial applications

Application

The HH79EZ003 thermistor is used in Carrier air conditioning and heat pump systems where discharge temperature monitoring is required. It is typically installed on the compressor discharge line and works in conjunction with the system’s control board to trigger protective shutdowns or alerts when temperatures exceed safe operating thresholds.

Why Choose OEM Carrier Parts?

Using genuine Carrier OEM components ensures proper fit, accurate sensor calibration, and compatibility with your system’s control logic — helping maintain system efficiency, warranty compliance, and long-term reliability.