Description
The Carrier HH79NZ077 is a genuine OEM replacement thermistor designed to monitor Outdoor Ambient Temperature (OAT) and Outdoor Coil Temperature (OCT) in compatible Carrier heating and cooling systems. Accurate temperature sensing at the outdoor unit is critical for proper system operation — including defrost cycle initiation, capacity staging, and refrigerant management. This thermistor feeds real-time data to the system control board, helping the unit respond correctly to changing outdoor conditions and protecting the system from operating outside safe parameters.
Using a genuine Carrier replacement part ensures compatibility and performance that aftermarket alternatives may not match. Installing the correct OAT/OCT thermistor helps maintain system efficiency, prevents nuisance faults, and extends the service life of your equipment.
Key Features
- Genuine Carrier OEM replacement thermistor
- Monitors Outdoor Ambient Temperature (OAT) and Outdoor Coil Temperature (OCT)
- Provides accurate temperature data to the system control board
- Supports proper defrost cycle operation and capacity control
- Helps prevent system faults caused by inaccurate temperature sensing
- Direct OEM replacement for precise fit and compatibility
Applications
- Compatible Carrier residential and light commercial air conditioners and heat pumps
- Outdoor unit temperature sensing — ambient air and coil monitoring
- Replacement for failed or damaged OAT/OCT thermistors
Product Details
- Brand: Carrier
- SKU / Part Number: HH79NZ077
- Sensor Type: Thermistor (OAT/OCT)
- Application: Outdoor Ambient Temperature & Outdoor Coil Temperature sensing
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