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The FM-SU mounting kit provides a robust
Always use a back-up wrench on the bottom nut to prevent internal damage
When diagnosing a unit where the furnace limit switch has tripped
the fan running continuously regardless of thermostat setting
you know that a failed seal on a high-flow system can lead to costly downtime and system inefficiency
Lennox 76A01 Relay Els PW 17895 The FM-SU mounting kit providesThe Lennox 76A01 Relay (also identified as 76A0101) is an essential OEM replacement component engineered for precision switching in residential and commercial Lennox furnace units. As a veteran grade HVAC heat relay, this part is designed to handle a 24V coil voltage and is commonly rated for a 40A load capacity, ensuring it can withstand the high demand cycles of Lennox furnace systems. This "switching package" facilitates the controlled operation of