Desa CSG3924NRA Owner's Operation And Installation Manual page 24

Mixing amplifiers unvented (vent-free) gas log heater
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1. Shut off unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burners, pilot and primary air inlet
holes on injector holder for dust and dirt
(see Figures 33 or 34).
3. Blow air through the ports/slots and holes
in the burners.
4. Check the injector holders located at the
end of the burner tubes again. Remove
any large particles of dust, dirt, lint or pet
hair with a soft cloth or vacuum cleaner
nozzle.
5. Blow air into the primary air holes on the
injector holders.
6. In case any large clumps of dust have now
been pushed into the burner repeat steps
3 and 4.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot assembly. There is a small pilot air
inlet hole about 2" from where the pilot flame
comes out of the pilot assembly (see Figure
35). With the unit off, lightly blow air through
the air inlet hole. The access hole for propane/
LP pilot is on the front of the burner carriage as
shown in Figure 35. The access hole for natu-
ral pilot is behind the pilot bracket on the top
of burner carriage (see Figure 34). You may
blow through a drinking straw if compressed
air is not available.
Burner
Tube
Primary Air
Inlet Holes
Figure 33 - Injector Holder On Outlet
Burner Tube - Rear Burner
24
CLEANING AND MAINTENANCE
Injector Holder
www.desatech.com
Continued
Access Hole
in Base
Figure 34 - Injector Holder On Outlet
Burner Tubes - Front and Middle Burners
Pilot Bracket
Pilot
Assembly
Access Hole
for Cleaning
Propane/LP
Pilot
Figure 35 - Cleaning Pilot Air Inlet Hole
(Your pilot may vary from pilots shown)
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 17, to properly replace
logs.
• Replace log(s) if broken or chipped (dime-
sized or larger)
Ports/Slots
Injector
Holder
Primary
Air Inlet
Holes
Access Hole
for Cleaning
Natural Pilot
Pilot Air
Inlet Hole
123639-01D

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