Lennox 79J73 Control Limit 318820-201 or a failing indoor blower

or a failing indoor blower motor that isn't moving enough CFM over the heat exchanger

steam typically requires Ethylene Propylene (EPDM) or Viton seals

Optimized Metering: Designed specifically for R-407C and R-22 retrofits where maintaining accurate evaporator feed is essential

Why is my current flame retainer showing signs of warping or discoloration

This motor is a direct-fit solution for maintaining the precise air distribution and thermal regulation required in professional mechanical installations

Lennox 79J73 Control Limit 318820-201 or a failing indoor blowerWorking with high static environments or Lennox rooftop units requires a manual reset limit switch you can depend on. The Lennox 79J73 Control Limit is a critical safety component designed to monitor discharge air or internal heat exchanger temperatures. When temperatures exceed the calibrated threshold, this high temperature limit switch breaks the 24V control circuit, immediately shutting down the burners or heating elements to prevent catastrophic