KNA Burner Manual 9.801-300.0 rev. 8/13
17
Section: Perform Regular Maintenance
Perform Regular Maintenance
Regular Maintenance to be performed by trained
service technicians
WARNING
Annual Professional
Service Required
Tampering with or making in-
correct adjustments could lead
to equipment malfunction and
result in asphyxiation, explo-
sion or fire.
•
DO NOT TAMPER WITH THE UNIT OR CON-
TROLS — CALL YOUR QUALIFIED SERVICE
TECHNICIAN OR SERVICEMAN
•
To ensure continued reliable operation, a quali-
fied service technician must service this burner
assembly.
•
More frequent service intervals may be required
in dusty or adverse environments.
•
Operation and adjustment of the burner requires
technical training and skillful use of combustion test
instruments and other test equipment.
The following guidelines are provided for routine
maintenance.
It is good practice to keep a record of
the service performed and the combustion test results.
q
Replace the oil supply line filter. The line filter car-
tridge must be replaced to avoid contamination of
the fuel pump and nozzle.
q
Inspect the oil supply system. All fittings should be
tight and leak-free. The supply lines should be free
of water, sludge and other restrictions.
q
Remove and clean the pump strainer if applicable.
q
Replace the used nozzle with a new nozzle that
conforms to the appliance manufacturer's specifi-
cations.
q
Clean and inspect the electrodes for damage.
Replace any that are cracked or chipped.
q
Check electrode tip settings. Replace electrodes
if tips are rounded.
q
Inspect the igniter spring contacts.
q
Inspect all gaskets. Replace any that are damaged
or fail to seal adequately.
q
Clean the blower fan, air band, air cone of any lint
or foreign material.
q
Use a clean, soft cloth with a degreaser to clean
any accumulated soot or oil stains from the sight
glass viewing window.
q
Check motor current. The amp draw should not
exceed the nameplate rating.
q
Check all wiring for secure connections or insula-
tion breaks.
q
Check the pump pressure and cutoff function.
q
Check the ignition system for proper operation.
q
Inspect and clear the vent system and flue pipe of
any soot accumulation or other restriction.
q
Check the burner performance. Refer to the section
"Set combustion with test instruments".
