Vanguard Vi33NRB Owner's Operation And Installation Manual page 27

Unvented (vent-free) gas fireplace insert
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OBSERVED PROBLEM
Slight smoke or odor during
initial operation
Moisture/condensation no-
ticed on windows
Heater produces a whistling
noise when burner is lit
White powder residue form-
ing within burner box or on
adjacent walls or furniture
Remote does not function
Fireplace insert produces a
clicking/ticking noise just after
burners are lit or shut off
113195-01J
TROUBlEShOOTiNG
Continued
POSSIBLE CAUSE
1. Not enough air
2. Gas regulator defective
3. Residues from manufac-
turing processes and logs
curing
1. Not enough combustion/
ventilation air
1. Turning control knob to HI
position when burner is
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Battery is not installed. Bat-
tery power is low
1. Metal expanding while
heating or contracting while
cooling
www.desatech.com
REMEDY
1. Check burner for dirt and
debris. If found, clean
burner (see Cleaning and
Maintenance, page 23)
2. Replace gas control
3. Problem will stop after a few
hours of operation
1. Refer to Air for Combustion
and Ventilation require-
ments (page 6)
1. Turn control knob to LO
position and let warm up
for a minute
2. Operate burner until air is
removed from line. Have
gas line checked by local
natural or propane/LP gas
company
3. Observe minimum instal-
lation clearances (see
page 11)
4. Clean burner (see Cleaning
and Maintenance, page 23)
or replace burner orifice
1. Turn heater off when using
furniture polish, wax, clean-
ers or similar products
1. Replace 9-volt batteries
in receiver and hand-held
remote control
1. This is normal with most
fireplaces. If noise is ex-
cessive, contact qualified
service person
27

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