Adjust blower.
Inspection of safety controls
Monitor furnace cycle
Adjust gas pressure
Check heat exchanger and burners
Check for cracked heat exchanger
Monitor flue draft for safe operation
Adjust heat anticipator settings
Check and adjust pilot operation
Adjust air flow for proper temperature
Check and tighten all loose electrical connections
Monitor voltage and amperage draw on all motors
Check Thermostat for Proper Operation
Change of Filter