www.desatech.com
117272-01F
12
TROUBLESHOOTING
WARNING: Turn off log set and let cool before servicing. Only a
qualified service person should service and repair log set.
Note: All troubleshooting items are listed in order of operation.
POSSIBLE CAUSE
1. Poor fuel quality
2. Fireplace venting system
not drafting properly
3. Excessive flame impinge
-
ment or blockage
4. Improper fuel/air mixture
5. Excessive gas supply/
pressure
1. Passage of air/gas across
irregular surfaces
1. Incorrect gas supply or
pressure
2. Blocked burner orifice or
burner manifold ports
3. Improper burner orifice
size
REMEDY
1. Contact local natural or
propane/LP gas company
2. Adjust damper wide open
and/or have fireplace and
venting professionally
cleaned and checked
3. Separate the logs to allow
more flame passage
4. Remove any foreign items
from the flame pattern and/
or check for proper orifice
sizing
5. Preheat flue in very cold
weather
1. Relieve any tight bends or
kinks in gas supply line
1. Check for proper gas supply
pressure
2. Free burner orifice and
manifold ports of any burrs,
paint, or other blockage
3. Verify proper burner orifice
sizing (see Figure 2, page 5)
OBSERVED PROBLEM
Log set is smoking/sooting
excessively
(Note: It is natural and unavoid-
able for vented gas log sets
to produce moderate levels
of carbon (soot) where flames
contact the logs. This is es-
pecially true with propane/LP
gas.)
Burner is excessively noisy
(Note: The movement and
combustion of gas will cre-
ate low, unavoidable levels
of noise.)
Burner flame is too low or
too high