Inspecting Burner
Check pilot flame pattern and burner flame pat- tern often.
PILOT FLAME PATTERN
Figure 27 shows a correct pilot flame pattern. Figure 28 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. 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 Figure 28
•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19)
•see Troubleshooting, page 22
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
Figure 27 - Correct Pilot Flame Pattern
(Propane/LP Shown)
Pilot Burner
Thermocouple
Figure 29 - Correct Burner Flame Pattern
Figure 30 - Incorrect Burner Flame
Pattern
Cleaning and
Maintenance
WARNING: Turn off fireplace and let cool before cleaning.
CAUTION: You must keep control areas, burner and cir- culating air passageways of fireplace clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person. Fireplace may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.
Figure 28 - Incorrect Pilot Flame Pattern
(Propane/LP Shown)
BURNER FLAME PATTERN
Figure 29 shows a correct burner flame pattern. Figure 30 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tipping. The flame should not be dark or have an orange/reddish tinge.
Note: When using the fireplace the first time, the flame will be orange for approximately one hour until the log cures.
If burner flame pattern is incorrect, as shown in Figure 30
•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19)
•see Troubleshooting, page 22
WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.
Burner Injector Holder and
Pilot Air Inlet Hole
The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.
20 | www.desatech.com |
