Burner Service - Sunfire SF120 Operation & Service Manual

BURNER SERVICE:

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.
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.
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.
REMOVE BURNER COVER SCREWS
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
3. Inspect the flame sensor for dirt or damage. Use a soft, damp rag or cotton swab to clean the sensor.
INSPECT FLAME SENSOR
REMOVE BURNER COVER
OPEN ACCESS COVER
If the flame sensor shows signs of damage,
troubleshoot the unit to determine and
correct the cause and replace the flame
sensor before resuming operation of the unit.
Contact SunFire technical service for
assistance.
sunfireheaters.com
+1 (855) 251-1649
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