Description
The Lennox 78M19 is an OEM supply air sensor engineered to deliver precise temperature readings within Lennox HVAC systems. Designed as a direct replacement part, it integrates seamlessly with compatible Lennox equipment to help maintain consistent comfort levels and protect system components from operating outside safe parameters.
Key Features
- OEM Lennox replacement supply air sensor
- Monitors supply air temperature for accurate system control
- Engineered for seamless compatibility with Lennox HVAC equipment
- Supports reliable system diagnostics and performance monitoring
- Helps maintain consistent indoor comfort and system efficiency
Why Choose the Lennox 78M19?
Using genuine OEM replacement parts like the Lennox 78M19 ensures your system operates as designed, reducing the risk of improper readings, nuisance faults, or premature component wear. Whether you’re servicing a residential or light commercial Lennox system, this supply air sensor is the correct replacement to restore accurate temperature sensing and dependable operation.
Application
- Lennox residential and light commercial HVAC systems
- Supply air temperature monitoring and control
- OEM service and replacement applications







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