High-Temperature Durability: Engineered to withstand the thermal cycling and chemical exposure typical of condensing furnace exhaust systems

utilizing this exact match prevents compatibility issues and ensures the system maintains efficient thermal regulation

It is fully adaptable with a four-way mounting orientation to fit tight manifold configurations

The IP65 rated casing protects against moisture and dust

Always test for 24V at the coil to rule out thermostat or control board issues

Lennox 14D89 Fan Switch 326058-756 High-Temperature Durability: Engineered to withstandMaintain consistent head pressure and prevent evaporator icing with the Lennox 14D89 Fan Switch, a critical component for low ambient cooling operations. This genuine OEM Lennox replacement part is engineered to cycle the outdoor fan based on system pressure, ensuring the compressor operates safely even when outdoor temperatures drop as low as 0F. Operating on a 208 230V 60Hz electrical configuration, the 14D89 provides the precise switching required