Lennox 25J30 Limit Switch the component must be replaced

the component must be replaced once it has been activated by excessive heat

It is a standard practice for technicians to ensure all local codes and labeling requirements are followed after the LP spring installation

ensuring the venting system is clear before allowing the gas valve to open

Common Questions: Will the 20197313 replace my metal-cased 20197306

the Robertshaw 801-22 is designed for J-Box housing compatibility

Lennox 25J30 Limit Switch the component must be replacedThe Lennox 25J30 is a heavy duty, disc style OEM furnace limit switch engineered for high precision thermal monitoring in residential and light commercial air handlers. This SPST normally closed control is a direct drop in replacement for the Lennox 25J3001 and is critical for maintaining safe plenum temperatures. Designed with an automatic reset function, the switch triggers a circuit break when temperatures reach the 155F cutout point, effectively