![background image](http://html.mh-extra.com/html/desa/vdl18pr/vdl18pr_owners-operation-and-installation-manual_2485975029.webp)
www.desatech.com
111035-01F
9
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing
processes and logs curing
1. Turning control knob to HI
position when burners are
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice(s)
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Not enough combustion/ven
-
tilation air
1. Improper log placement
2. Drafts or other air currents
affecting flame pattern
3. Air holes at burner inlet
blocked
4. Burner flame holes blocked
1. Battery is not installed. Battery
power is low
1. Metal expanding while heating
or contracting while cooling
OBSERVED PROBLEM
Slight smoke or odor during
initial operation
Heater produces a whistling
noise when burners are lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Moisture/condensation noticed
on windows
Dark residue on logs inside
of their fireplace
Note:
After
removing all causes of residue
deposits, completely clean fire
-
place and appliance off residue
before reusing appliance
Remote does not function (Re
-
mote-Ready Models Only)
Heater produces a clicking/tick
-
ing noise just after burners are
lit or shut off
REMEDY
1. Check burner for dirt and
debris. If found, clean burner
(see
Cleaning and Mainte-
nance
, page 25)
2. Replace gas control
3. Problem will stop after a few
hours of operation
1. Turn control knob to LO
position and let warm up for
a minute
2. Operate burners until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
3. Observe minimum installation
clearances (see page 8)
4. Clean burners (see
Cleaning
and Maintenance
, page 25) or
replace burner orifice
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. Refer to
Air for Combustion
and Ventilation
requirements
(page 6)
1. Properly locate logs (see
In-
stalling Logs
, page 18)
2. Eliminate source of drafts
around heater
3. Clean out air holes at burner
inlet. Periodically repeat as
needed
4. Remove blockage or replace
burner
1. Replace 9-volt batteries in
receiver and hand-held remote
control
1. This is normal with most heat
-
ers. If noise is excessive, contact
qualified service person