Desa VYGF33PRC Owner's Operation And Installation Manual page 27

OBSERVED PROBLEM
Moisture/condensation noticed
on windows
Heater produces a whistling
noise when burners are lit
White powder residue forming
within burner box or on adjacent
walls or furniture
Remote does not function
(GHRCB and GHRCTB only)
Fireplace produces a clicking/
ticking noise just after burner
is lit or shut off
113109-01B
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough combustion/ven-
tilation air
1. Turning control knob to HI po-
sition 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. Battery is not installed. Bat-
tery power is low
1. Metal expanding while heating
or contracting while cooling
www.desatech.com
REMEDY
1. Refer to Air for Combustion
and Ventilation requirements
(page 5)
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 installa-
tion clearances (see page 9)
4. Clean burners (see Cleaning
and Maintenance, page 24)
or replace burner orifice(s)
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
1. Replace 9-volt batteries in
receiver and hand-held remote
control
1. This is common with most heat-
ers. If noise is excessive, contact
qualified service person
27