Desa VTD-24N-JHB - Manual (Page 11)

www.desatech.com 114370-01D 11
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 REMEDY OBSERVED PROBLEM
1. Poor fuel quality
2. Fireplace venting system not
drafting properly
3. Improper fuel/air mix
4. Excessive gas supply or pres-
sure
1. Passage of air or gas across
irregular surfaces
1. Incorrect gas supply or pres-
sure
2. Blocked burner orifice or
burner manifold
3. Improper burner orifice size
Log set is smoking/sooting ex-
cessively (Note: It is natural and
unavoidable for vented gas log
sets to produce moderate levels
of carbon (soot) where flames
contact logs.
Burner is excessively noisy
(Note: The movement and com-
bustion of gas will create low,
unavoidable levels of noise.)
Burner flame is too low or too
high
1. Contact local gas supplier
2. Adjust damper wide open and/
or have fireplace and venting
professionally cleaned and
checked
3. Remove any foreign items from
flame pattern and/or check for
proper orifice sizing
4. 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 mani-
fold ports of any burrs, paint
or other blockage
3. Verify proper burner orifice
sizing (see Figure 2, page 6)