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ensuring all threads
ensuring internal components are shielded from dust and moisture while utilizing moving air for cooling
Designed as the direct replacement for FS4-3S-E
or a failing blower motor which prevents heat from being stripped away from the heat exchanger efficiently
Lennox 99M99 Pressure Switch 318423-701 ensuring all threadsAs a service ready high pressure switch for diagnostic and repair calls, the Lennox 99M99 is a critical safety component designed for high side refrigerant monitoring. This genuine Lennox replacement part is engineered to actuate at 590 PSI and features an automatic reset at 418 PSI, ensuring the compressor is protected against catastrophic over pressure conditions common in R 410A systems. Built with 106 inch leads and rated for 120 240 VAC (375 VA),
