Daikin-McQuay 300050859 Heater R-407C verify the flame sensing rod

verify the flame sensing rod is clean and positioned correctly in the pilot flame

this OEM Lennox part ensures that the control board receives accurate resistance data to initiate the reversing valve and auxiliary heat strips exactly when needed

Applying penetrating oil to the 1/2" bore area 24 hours prior to removal is recommended

The valve is equipped with a 3/4" NPT inlet and a 1/2" NPT outlet

Precision Control: High-tolerance circuitry manages blower motor speed and airflow delivery for optimized efficiency

Daikin-McQuay 300050859 Heater R-407C verify the flame sensing rodEnsure critical protection for your HVACR system with the Daikin McQuay 300050859 Crankcase Heater. This authentic OEM replacement part is engineered for high performance compressors requiring a 70W 120V heating solution to prevent refrigerant migration. Operating as a reliable compressor belly band heater, it maintains oil temperature above the ambient dew point, effectively preventing "slugging" during cold starts. For technicians servicing McQuay