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Precision-drilled #40 (
Lennox often uses these suffixes to denote packaging variations or revision cycles
If the fan belt is bottoming out or chirping upon startup
When you need a reliable power transmission solution for your HVACR systems
Rheem-Ruud 42-22692-09 Door Switch 321894-709 Precision-drilled #40 (The Rheem Ruud 42 22692 09 Door Switch is a critical safety component designed for furnace and air handler applications. This OEM replacement door switch functions as a primary interlock, automatically breaking the electrical circuit to the blower and burner assemblies when the blower access panel is removed. Engineered to handle high voltage requirements, this SPST normally open switch is rated for 120 230V AC and 13. 8 Amps, ensuring it can handle
