INSPECTING BURNERS
Check pilot flame pattern and burner flame pat- terns often.
PILOT FLAME PATTERN
Figure 30 shows a correct pilot flame pattern. Fig- ure 31 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermo- couple. This will cause the thermocouple to cool. When the thermocouple cools, the fireplace will shut down.
If pilot flame pattern is incorrect, as shown in Fig- ure 31
•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 18)
•see Troubleshooting, pages 21 through 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
Thermocouple
FRONT BURNER FLAME PATTERN
Figure 32 shows correct front burner flame pat- tern. Figure 33 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame.
WARNING: If front burner flame pattern shows yellow tip- ping, your fireplace could pro- duce increased levels of carbon monoxide. Follow instructions at bottom of this page. Yellow flame on rear burner is normal.
NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by fireplace, causing brief patches of orange flame.
If front burner flame pattern is incorrect, as shown in Figure 33
•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 18)
•see Troubleshooting, pages 21 through 24
Figure 30 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Pilot Burner
Thermocouple
Figure 32 - Correct Front Burner Flame
Pattern
Yellow Tipping At
Top of Blue Flame
Figure 31 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)
Figure 33 - Incorrect Front Burner Flame
Pattern
www.desatech.com | 19 |
