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Its corrosion-resistant finish is built to withstand the acidic condensate often found in high-efficiency venting environments
The SPNO contacts should show continuity once the pressure falls to the calibrated 0
it cross-references with several Janitrol and Daikin units
The calls from the thermostats remain active
this high-performance component is the administrative direct replacement for CTR1138
Robertshaw 41-403 Hot Surface Ignitor Its corrosion-resistant finish is builtThe Robertshaw 41 403 Hot Surface Ignitor (271M) is a heavy duty silicon carbide igniter designed for consistent ignition in 120V AC heating systems. As a veteran grade furnace replacement part, this unit features high purity recrystallized silicon carbide construction (Crystar), providing the structural integrity needed for demanding cycles in boilers, rooftop units, and infrared burners. It serves as the direct Robertshaw 41 403 cross reference for
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