DeLonghi WIR2 LP GAS Instructionn Manual page 18

GB 29-01-2004 16:33
Note: All troubleshooting items
are listed in order of operation
OBSERVED PROBLEM
Burner does not light
after ODS/pilot is lit
Dalayed ignition of burn-
er
Burner backfiring during
combustion
Burner plaque(s) does not
glow
Slight smoke or odor dur-
ing initial operation
Heater produces whistling
noise when burner is lit
White powder residue
forming with burner box
or on adjacent walls or
furniture
18
Pagina 18
WARNING: only a qualified
service person should serv-
ice and repair heater
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or damaged
2. Burner damaged
3. Gas regulator defective
1. Plaque damaged
2. Control knob set between locked
positions
3. Inlet gas pressure is too low
1. Residues from manufacturing processes
1. turning control knob to HIGH position
when burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner ori-
fice
1. When heated, vapors from furniture
polish, wax, carpet cleaners, etc., turn
into white powder residue
CAUTION: never use
wire,needle, or similar object
to clean ODS/pilot. This can
damage ODS/pilot unit
REMEDY
1. Clean burner orifice (see clean-
ing and maintenance, pag 14)
or replace the burner
2. Contact local natural gas com-
pany
1. Contact local natural gas com-
pany
2. Clean burner orifice (see clean-
ing and maintenance, pag 14)
or replace the burner
1. Clean burner orifice (see clean-
ing and maintenance, pag 14)
or replace the burner
2. Replace burner
3. Replace gas regulator
1. Replace burner
2. Turn control knob until it locks
at desired setting
3. Contact local natural gas com-
pany
1. Problem will stop after a few
hours of operation
1. Turn control knob to LOW
position and let warm up for a
minute
2. Operate burner until air is
removed from line. Have gas
line checked by local natural
gas company
3. Observe minimum installation
clearances (see figure 4, page 7
4. Clean burner (see cleaning and
maintenance, page 14) or
replace the burner
1. Turn heater off when using fur-
niture polish, wax, carpet
cleaner or similar products