Lennox 49K65 Gasket 320735-701 Ensure the flame sensor is

Ensure the flame sensor is clean and producing a sufficient microamp signal back to the York ignition control board

Failure is typically caused by restricted airflow (dirty filters/blocked ducts) leading to overheating

Hytrel material provides superior chemical resistance and operates reliably across a temperature range of -65°F to 250°F

or a failing inducer blower that cannot maintain the required pressure

Lennox 49K65 Gasket 320735-701 Ensure the flame sensor isThe Lennox 49K65 Gasket is a critical HVAC replacement part designed for high performance sealing in commercial HVAC equipment. Constructed from durable 24 inch PVC material, this Lennox 49K65 OEM gasket ensures a thermal and airtight seal, preventing energy loss and maintaining system pressure. Contractors frequently utilize this Lennox gasket seal during routine maintenance of Lennox rooftop units and air handlers to mitigate leak risks. Engineered