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BURNER SERVICE:
Do not attempt to handle burner components unless the unit has been unplugged and cooled
completely. Components can be hot and could cause severe personal injury.
The burner assembly should be serviced seasonally, at a minimum, or whenever excess smoke is present or a
clog or poor fuel quality is suspected. For inspection or service, the nozzle subassembly will need to be removed
from the heater and the flame sensor, igniter electrode, and combustion chamber should be inspected.
TO SERVICE THE BURNER ASSEMBLY:
1. Use a Phillips-head screwdriver to remove the four (4) screws securing the burner cover to the unit.
Then, remove the burner cover.
2. Use a Phillips-head screwdriver to remove the screw securing the square access door closed.
Then, swing the door down.
REMOVE ACCESS COVER SCREW OPEN ACCESS COVER
REMOVE BURNER COVER SCREWS
REMOVE BURNER COVER
3. Grab and pull the end of the ignition wires (not shown) to disconnect them from the electrode
terminals. Then, slide the rubber wire grommets from the housing and move the wires aside.
DISCONNECT IGNITION WIRES
SF-120 shown here. SF-80 internal
components and locations differ slightly.
For the SF-80, disconnect the flame-sensor
wires from the F1 & F2 terminals of the
primary control (in addition to the ignition
wires) to allow for removal of the nozzle-line
assembly.
WARNING
!
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