Description
The Lennox 17F23 Collector Box Replacement Kit is an OEM-sourced solution designed to restore the integrity of the collector box assembly on compatible Lennox furnaces. The collector box plays a critical role in the furnace venting system, channeling flue gases from the heat exchanger to the inducer blower and managing condensate drainage in high-efficiency applications. When the original collector box cracks, warps, or develops leaks, it can compromise combustion efficiency, trigger pressure switch faults, and create potential safety hazards — making timely replacement essential.
Key Features
- OEM Lennox replacement kit engineered for precise fit and performance
- Restores proper flue gas routing and condensate drainage
- Helps resolve pressure switch faults caused by collector box leaks or cracks
- Designed for use in high-efficiency Lennox furnace applications
- Durable construction for long-lasting, reliable service
- Direct factory replacement — no modifications required
Application
This replacement kit is intended for use with compatible Lennox furnace models. Always verify compatibility with the specific furnace model and serial number before installation. Refer to the Lennox service documentation or contact your Lennox distributor to confirm fitment.
Installation Notes
- Installation should be performed by a qualified HVAC technician
- Inspect all associated venting, gaskets, and pressure switch tubing during replacement
- Ensure all connections are properly sealed after installation to prevent flue gas leaks





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