Lennox 32C88 Furnace Pressure Switch OEM Replacement - 2-Stage

The Lennox 32C88 is a genuine OEM 2-stage pressure switch designed as a direct replacement for compatible Lennox two-stage gas furnaces. This critical safety component monitors negative air pressure generated by the inducer motor and verifies that proper draft has been established before permitting the ignition sequence to proceed.

Unlike single-stage pressure switches, the 32C88 operates at two distinct pressure set points — one corresponding to the low-fire heating stage and one for the high-fire heating stage. This dual-sensing capability ensures each stage of combustion is only initiated when the correct negative pressure level is confirmed, protecting both the heating system and occupants from unsafe combustion conditions.

Key Features:

• Genuine Lennox OEM replacement part
• 2-stage operation monitors both low-fire and high-fire pressure set points
• Acts as a safety interlock — prevents ignition if inducer draft is insufficient
• Protects against incomplete combustion, flue gas spillage, and inducer motor failure
• Direct drop-in replacement for compatible Lennox furnace models

The Lennox 32C88 pressure switch is an essential furnace safety component. Replacing a failed or out-of-tolerance pressure switch restores proper burner sequencing and helps ensure safe, efficient operation of your two-stage Lennox heating system.