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Ships within 48 hours · Estimated delivery Oct 24 - Oct 29
As a NEMA 1 rated device
allowing technicians to restore system performance and reliable ignition sequences in mobile home heating applications
Enhanced Safety: Finger-proof construction and full fuse isolation in the off position minimize shock risks during electrical disconnect maintenance
What causes a furnace control board to fail prematurely
Lennox 97W45 Limit Switch 320074-702 As a NEMA 1 ratedThe Lennox 97W45 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a normally closed thermal switch, this L140 30F secondary limit monitors heat exchanger temperatures to prevent overheating and potential heat exchanger fatigue. With a fixed temperature setting of 140F and a 30F differential, this Lennox high limit sensor ensures a reliable cutout when
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