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The included high-voltage ignition cable and 42-inch flame sensor wire address common system lockout issues caused by carbon fouling or insulation breakdown in older harnesses
such as multiple zone valves or large contactors
What is the advantage of a vapor charge sensor in this model
While some DSI modules share similar footprints
Lennox 73W18 Limit Switch 328140-751 The included high-voltage ignition cableThe Lennox 73W18 Limit Switch (Model 102857 05) is an essential OEM replacement part designed for high precision thermal protection in residential and commercial heating cycles. This auto limit control switch features a STILT design and is specifically calibrated to actuate at 150F (cut out) and automatically reset at 120F (cut in), maintaining a strict 30 degree differential to protect the heat exchanger from overheating conditions. Built with a
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