Lennox 15W56 Pressure Switch L99H008 the WIR2359 harness assembly features

the WIR2359 harness assembly features industrial-grade insulation to resist thermal degradation and chafing

and ceramic wire nuts for secure electrical termination

Can I use this to replace a different WC rated switch

supporting accurate flame sensing and reducing false-positive ignition failures

This specific 81L76 control board is engineered to handle the 120V line voltage and 24V control circuits required for standard ignition sequences

Lennox 15W56 Pressure Switch L99H008 the WIR2359 harness assembly featuresEnsure the safe and efficient performance of your heating system with the Lennox 15W56 Pressure Switch. This genuine OEM replacement part, also identified as 65289300, is a critical safety component designed to monitor airflow and venting pressures within the combustion chamber. Engineered specifically for Lennox furnaces and unit heaters, this SPST pressure switch features a precise 0. 43" WC setpoint and a standard 1 4" barb connection for seamless