Cleaning - Continued.
DO NOT use anything metallic to clean fuel nozzle orifice as the orifice may be
(5) Clean fuel nozzle components in cleaning solvent (item 3, Appen-
Be sure that nozzle fuel orifice is clean and unob-
Inspect burner housing for
Inspect window for damage,
Inspect spark plug lead for
for cracked or deteriorated
cracks and broken welds.
dirt, or soot.
corroded or broken connector and
Inspect spark plug for cracked insulator, broken electrode,
soot covered electrodes, and corroded electrodes and/or con-
Inspect igniter for cracks, broken or cracked wires, broken
terminals, or burned areas.
Inspect for missing hardware.
Inspect igniter function by following procedures below.
Connect igniter plug wire to uninstalled spark plug.
Connect igniter wires to control panel.
Position spark plug to allow uninsulated side of plug to
touch an electrically grounded surface.
If a spark. does not jump between electrodes of spark
plug, igniter is defective and must be replaced.
After replacement of defective igniter, retest to insure new
igniter is operative.
Inspect burner nozzle tip for clogs, cracks and deformation.
(1) Reassemble nozzle and carefully install nozzle (12) in holder