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Cross-Brand Compatibility: Direct fit for numerous Source 1 HVAC parts applications across the Johnson Controls (JCI) family of products
Key Benefits Precision Compatibility: Designed specifically for the Y86 Series and Y8610U ignition kit
or a sensor that has drifted out of its calibrated ohm range
Will this switch fit my specific furnace model
reducing the risk of accidental mid-position stalls
Armstrong Furnace R40154B010 Limit Switch Els PW 17895 Cross-Brand Compatibility: Direct fit forThe Armstrong Furnace R40154B010 Limit Switch is a critical high limit safety control engineered for precise thermal monitoring in residential heating systems. This L150 30 R40 limit switch is designed to open at 150F and features an automatic reset that closes once the temperature drops by 30F, typically around 120F. As an essential component for system protection, the R40154B010 (functionally identical to 40154B 010) prevents the heat exchanger from
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