Lochinvar Condensing Boiler FBN4001

Inspect flame through observation windows.

Is the flame satisfactory at both high fire and low fire?

Is cleaning performed inside a building?

Remove and clean the burner using a vacuum cleaner or compressed air.

Shut down the boiler following the 'To Turn Off Gas to Appliance' instructions.

Will the boiler be exposed to freezing temperatures?

Is freeze prevention fluid used in the system?

Verify all system components are correctly installed and operational

Enter the cold fill pressure for the system

Is the cold fill pressure correct?

Monitor the system pressure as the boiler heats up

Inspect automatic air vents and air separators

Remove air vent caps and briefly press push valve to flush vent

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 from the gauge

Enter the current temperature reading from 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.

Follow the 'To Turn Off Gas to Appliance' instructions

Is the boiler exposed to freezing temperatures?

Is freeze prevention fluid used in the system?

Allow boiler to cool to room temperature

Remove the gas/air manifold assembly

Remove the nuts securing the burner to the burner mounting plate