Lennox Gas Furnace GHR32Q4-120

Shut down the unit for an extended period

Ensure the unit is exposed to sub-freezing temperatures

Drain water from the condensate trap

Locate the 3/8” cap on the bottom corner of the condensate trap

Remove the 3/8” cap to drain the condensate trap

Periodically drain the condensate trap to ensure proper drainage

Verify all connections for tightness

Ensure there is no blockage in the intake and exhaust lines

Check if the condensate line has free flow during operation

Supply Air Blower Inspection and Cleaning

Verify motor lubrication status

Inspect filters for dirt and debris

Are the filters reusable foam filters?

Wash reusable foam filters with water and mild detergent

Dry the filters completely before proceeding

Spray filters with filter handicoater

Is filter replacement necessary?

Select the replacement filter size

Check all wiring for loose connections

Check circuit breaker located in unit control box

Enter the voltage at unit (unit operating)

Is the heat operating (if applicable)?