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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
The 391937 and 391937/U are the same Honeywell/Resideo conversion kit
Fast Installation: Standard mount design allows for quick field replacement by service technicians
Combustion Optimization: Helps prevent common issues like "lazy flames" or excessive carbon monoxide production by maintaining the correct gas velocity
Constructed from stainless steel for maximum corrosion resistance and thermal stability
What tool is required for securing the nuts
York S1-025-26392-003 Rollout Switch The 391937 and 391937/U areThe York S1 025 26392 003 Rollout Switch is a critical thermal safety component designed for precise combustion monitoring in York, Coleman, and Luxaire gas fired furnaces. This SPST (Single Pole Single Throw) fixed temperature limit is engineered to interrupt the burner circuit if it detects a flame rollout condition, preventing potential equipment damage or hazardous operation. Built by Therm O Disc, this flame rollout switch features a 145 degree F
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