Goodman Gas Furnace GMSS960804CNAA

Ensure all other gas appliances are turned off

Ensure the heating cycle has been in operation for at least fifteen minutes

Record the time taken for the gas meter's cubic foot dial to make one complete revolution (in seconds)

Calculate the cubic feet of gas consumed per hour using the gas rate chart

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

Calculate the BTU input by multiplying the cubic feet of gas consumed per hour by the calorific value

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

Measure the current manifold pressure.

Is the manifold pressure within 3 inches water column of 3.5 inches for natural gas or 10 inches for propane gas?

Adjust the pressure regulator direction

Propane Gas Specific Instructions

Ensure no unit gas valve regulator is used for propane gas.

Adjust the second stage supply line pressure regulator to 10 inches water column with all other gas consuming appliances running.

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?

Ensure the new filter is of the same type and size

Disconnect all power before servicing or installing the unit.

Check the following furnace components for proper working order

Is the ignitor being handled by a qualified servicer?

Describe any handling precautions taken for the ignitor

Repair or service any components as necessary.