www.fmiproducts.com 113111-01K22
Thermocouple
Pilot Burner
Figure 31 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Thermocouple
Pilot Burner
Figure 32 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)

BURNER FLAME PATTERN

Figure 33 shows a correct burner ame pat-
tern. Figure 34 shows an incorrect burner
ame p attern. The in correct burner ame
pattern shows sporadic, irregular ame tip-
ping. The ame should not be dark or have
an orange/reddish tinge.
Note: When using replace for the rst time,
ame will be orange for approximately 1 hour
until log cures.
If burner ame pattern is incorrect, as shown
in Figure 34
• turn replace off (see To Turn Off Gas to
Appliance, page 21)
• see Troubleshooting, page 24
Figure 33 - Correct Burner Flame Pattern
Figure 34 - Incorrect Burner Flame
Pattern
InsPeCTIng BURneR
Check pilot ame pattern and burner ame
pattern often.

PILOT FLAME PATTERN

Figure 31 shows a correct pilot ame pattern.
Figure 32 shows an incorrect pilot ame pat-
tern. The incorrect pilot ame is not properly
heating the thermocouple. This will cause
thermocouple to cool. When thermocouple
cools, the replace will shut down.
If pilot ame pattern is incorrect, as shown
in Figure 32
• turn replace off (see To Turn Off Gas to
Appliance, page 21)
• see Troubleshooting, page 24
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue
and have no yellow or orange color.