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This hot surface ignitor is cross-compatible with numerous OEM models
Always match the microfarad rating specified by the compressor or fan motor manufacturer
technicians should always verify the part number against the unit’s service manual
While soot can sometimes be removed with an abrasive pad
Reznor 211754 Limit Switch 322057-301 This hot surface ignitor isThe Reznor 211754 Limit Switch is a critical safety component designed for high limit temperature monitoring in Reznor unit heaters. This OEM replacement switch features a 180F fixed temperature setpoint with a 30F differential, ensuring precise thermal cutout protection to prevent internal heat exchanger damage or unsafe operating conditions. Built for durability in commercial HVACR applications, this SPST automatic reset limit switch monitors
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