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the terminal positions and labels on the TB1 and TB2 blocks have changed
When you are troubleshooting an ignition failure on an ABC D & LC burner
You can use the Lennox 44L72 seamlessly in any application calling for the 44L7201
Common issues include debris causing the plunger assembly to stick or high-cycle fatigue on the plunger spring
replacing a corroded or warped shroud is essential for restoring quiet operation and systemic integrity
Lennox 49L92 Pressure Switch Els PW 17895 the terminal positions and labelsThe Lennox 49L92 Pressure Switch is a high precision OEM HVAC replacement part engineered for critical safety monitoring in Lennox gas furnaces and air handlers. This 0. 58" WC SPST pressure switch is a normally open (N. O.) control that verifies the inducer motor is generating the correct negative pressure to vent combustion gases safely. As the direct equivalent to part numbers 49L9201 and LB 109531B, this component ensures your system meets factory