If you see significant oxidation on the pilot hood or if the pilot flame is lazy and yellow even after cleaning

as it provides a higher dielectric strength against voltage spikes

239-44723-01

ensuring material compatibility and system integrity

providing a stable flame pattern that maximizes heat transfer while minimizing pollutant emissions

Lennox 86H72 190F Limit Switch If you see significant oxidationThe Lennox 86H72 190F Limit Switch is a critical safety component designed for high performance temperature regulation in residential and commercial heating systems. This genuine OEM Lennox part features an auto reset configuration, engineered to interrupt burner operation when the plenum temperature reaches the 190F high limit threshold. Once the system cools to the 160F reset point, the switch automatically closes the circuit, allowing for continued