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101827
OBSERVED
PROBLEM
Burner(s) does not
light after ODS/pilot
is lit
Delayed ignition of
burner(s)
Burner backfiring
during combustion
Burner plaque(s) does
not glow
Slight smoke or odor
during initial operation
Heater produces a
clicking/ticking noise
just after burner is lit
or shut off
POSSIBLE
CAUSE
1. Burner orifice(s) is
clogged
2. Burner orifice(s)
diameter is too small
3. Inlet gas pressure is
too low
1. Manifold pressure is
too low
2. Burner orifice(s) is
clogged
1. Burner orifice(s) is
clogged or damaged
2. Inlet gas pressure is
too low
3. Burner damaged
4. Gas regulator defective
1. Plaque damaged
2. Inlet gas pressure is
too low
3. Control knob set
between locked
positions
1. Residues from manu-
facturing processes
1. Metal expanding while
heating or contracting
while cooling
REMEDY
1. Clean burner orifice(s)
(see Cleaning and
Maintenance, page 22)
or replace burner
orifice(s)
2. Replace burner orifice(s)
3. Contact local propane/
LP gas company
1. Contact local propane/
LP gas company
2. Clean burner orifice(s)
(see Cleaning and
Maintenance, page 22)
or replace burner
orifice(s)
1. Clean burner orifice(s)
(see Cleaning and
Maintenance, page 22)
or replace burner
orifice(s)
2. Contact local propane/
LP gas company
3. Replace burner
4. Replace gas regulator
1. Replace burner
2. Contact local propane/
LP gas company
3. Turn control knob until
it locks at desired setting
1. Problem will stop after a
few hours of operation
1. This is common with
most heaters. If noise is
excessive, contact
qualified service person
TROUBLE-
SHOOTING
Continued