Reznor 235953 Pressure Switch WC - 2.25

The Reznor 235953 is a 2.25" water column (WC) pressure switch designed for use in Reznor heating equipment. This safety component monitors air pressure in the combustion system and ensures proper venting before allowing the unit to operate.

Key Features:

• Pressure rating: 2.25 inches water column
• Factory-specified replacement part for Reznor heaters
• Critical safety component that prevents operation under unsafe venting conditions
• Direct OEM replacement ensures proper fit and function

Pressure switches are essential safety devices in forced-air heating systems. This switch verifies that the inducer motor has established adequate airflow through the heat exchanger and venting system before the burner ignites. If proper pressure differential is not achieved, the switch prevents ignition to protect against potential carbon monoxide hazards.