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Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 28 shows a correct pilot flame pattern.
Figure 29 shows an incorrect pilot flame pat-
tern. The incorrect pilot flame is not touching
the thermocouple. When the thermocouple
cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 29
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 24
Note: The pilot flame on natural gas units will
have a slight curve, but flame should be blue
and have no yellow or orange color.
Pilot Burner
Figure 28 - Correct Pilot Flame Pattern
(Propane/LP Pilot Shown)
Pilot Burner
Figure 29 - Incorrect Pilot Flame Pattern
(Propane/LP Pilot Shown)
BURNER FLAME PATTERN
Figure 30, shows a correct burner flame pat-
tern. Figure 31, shows an incorrect burner
flame pattern.
20
INSPECTING BURNERS
Thermocouple
www.SuperiorFireplaces.US.com
If burner flame pattern is incorrect as shown
in Figure 31
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 19)
• see Troubleshooting, page 24
Figure 30 - Correct Flame Pattern
Figure 31 - Incorrect Flame Pattern
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes
in the fitting at the burner entrance. These
holes may become blocked with dust or lint.
Periodically inspect these holes for any block-
age and clean if needed. Blocked air holes
will create soot.
MAIN BURNER
Periodically inspect all burner flame holes with
the heater running. All slotted burner flame
holes should be open with yellow flame pres-
ent. All round burner flame holes should be
open with a small blue flame present. Some
burner flame holes may become blocked by
debris or rust, with no flame present. If so,
turn off heater and let cool. Remove blockage,
blocked burner flame holes will create soot.
Bright yellow burner
flame; flame will be
blue next to burner
Dark orange
burner flame
126848-01A
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