Pay in 4 interest-free payments of $6.93 Learn more
Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
including humidifiers and electronic air cleaners
This 1-speed assembly is optimized for heat-only applications
Common indicators include the compressor humming but failing to cycle
this Eon 5
Lennox 74W77 Limit Switch 320788-702 including humidifiers and electronic airThe Lennox 74W77 Limit Switch is a critical OEM safety component engineered for precise thermal regulation within Lennox furnaces and air handlers. This L155 30F limit switch is calibrated to open at 155F and automatically reset when the temperature drops by 30F, preventing heat exchanger damage and ensuring safe operational cycles. Designed as a direct Lennox 74W77 replacement, this high limit control utilizes a bimetal sensing element to monitor
US$ 542.50
US$ 270.00
US$ 1197.50