Goodman Gas Furnace GMSS920803BNAA

Ensure all other gas appliances are turned off

Wait for the heating cycle to operate for at least fifteen minutes

Clock the gas meter to determine the time for one complete revolution of the cubic foot dial

Enter the time in seconds for one complete revolution

Enter the number of cubic feet of gas consumed per hour

Enter the calorific value of the gas (BTU per cubic foot)

Disconnect all power before servicing or installing the unit

Check the following components for proper working order and function

Was the ignitor handled with care, avoiding contact with bare fingers?

Was the ignitor free from rough handling or vibration?

Were all necessary repairs or services performed?

Record any issues encountered during the procedure

Turn on the furnace at the thermostat

Wait a few minutes for dislodged dust to settle

Check the burner flames for the following characteristics

Are the flames stable, quiet, soft and blue with slightly orange tips?

Are the flames extending directly outward from the burner ports without curling downward, floating or lifting off the ports?

Connect a manometer to the outlet tap at the gas valve before adjusting the pressure regulator.

Record the initial manifold pressure in inches of water column.

Is the manifold pressure within the acceptable range for natural gas (3.5 inches water column) or propane gas (10 inches water column)?

Select the type of gas being used.

Record the final manifold pressure in inches of water column after adjustment.

Is the final manifold pressure within the acceptable range?

Adjusting the Pressure Regulator