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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
As a genuine L255F-30 Auto Limit Switch
30-amp magnetic contactor designed as a reliable field swap for problematic switches in residential and light commercial condensers
or blocked return air grilles that cause heat to build up beyond the 155°F threshold
These gaskets are fabricated from heavy-duty
Lennox 42J04 Limit Switch As a genuine L255F-30 AutoThe Lennox 42J04 Limit Switch is a critical OEM replacement part designed for high limit thermal protection in residential and commercial HVAC systems. Engineered to maintain safe operating parameters, this 135 175F Auto Limit Switch features an automatic reset mechanism that interrupts the heating circuit if internal plenum temperatures exceed the 175F threshold, preventing heat exchanger damage and ensuring system safety. This fixed temperature
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