Lochinvar Condensing Boiler FBL1001

Follow the 'To Turn Off Gas to Appliance' instructions

Is the boiler exposed to freezing temperatures? If yes, drain the boiler unless using freeze prevention fluid.

Allow boiler to cool to room temperature if it has been firing

Remove the top access panel to access the gas/air manifold assembly

Remove the nuts securing the burner to the burner mounting plate and remove the burner

Remove the nuts securing the burner mounting plate from the heat exchanger and set aside the entire burner mounting plate assembly

Remove the ignition electrode from the burner plate

Remove both flame sense electrodes from the burner plate

Remove deposits from the ignition/flame sense electrodes using sandpaper

Were the electrodes cleaned satisfactorily?

Replace electrodes if they cannot be cleaned satisfactorily

Replace ignition/flame sense electrodes

Check all settings on the Setup Screen

Check settings of external limit controls (if any)

Adjust external limit control settings if necessary

Verify that boiler area is free of any combustible materials, gasoline, and other flammable vapors and liquids

Verify that air intake area is free of any contaminants

If contaminants are present, have they been removed?

If contaminants cannot be removed, have the air and vent lines been reinstalled per the manual?

Check pressure/temperature gauge

Enter the current pressure reading on the gauge

Enter the current temperature reading on the gauge

Is the pressure within the normal operating range?

Inspect boiler ground wire from the heat exchanger access cover to ground terminal strip.

Verify all wiring is in good condition and securely attached.

Check ground continuity of wiring using continuity meter.

Is the ground continuity satisfactory?

Replace ground wires if ground continuity is not satisfactory.