Comfort Glow GLD2466R Manual page 36

TROUBLESHOOTING
PROBLEM
ODS/pilot lights
but flame goes out
when control knob is
released.
Burner(s) does not
light afterODS/pilot
is lit.
Burner(s) does not
light afterODS/pilot
is lit. (Heater is set
up for NG.)
Delayed ignition of
burner(s).
Burner backfiring
during combustion.
High yellow flame
during burner
combustion
Gas odor during
combustion.
Heater produces a
clicking/ticking noise
just after burner is lit
or shut off.
POSSIBLE CAUSE
1. Control knob is not fully
pressed in.
2. Control knob is not pressed
in long enough.
3. Equipment shutoff valve is
not fully open.
4. Thermocouple connection is
loose.
5. Thermocouple damaged.
6. Control valve damaged.
7. Wrong gas setting.
1. Burner orifice is clogged.
2. Burner orifice diameter is
too small.
3. Inlet gas pressure is too low.
1. Inlet gas pressure is too
high.
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of page 27).
1. Metal is expanding while
heating or contracting
while cooling.
CORRECTIVE ACTION
1. Press in control knob fully.
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds.
3. Fully open equipment shutoff valve.
4. Hand tighten until snug, and then
tighten ¼ turn more.
5. Replace thermocouple.
6. Contact customer service.
7. Correct gas selection.
1. Clean burner orifice (see Care and
Maintenance, page 25 & 26) or contact
customer service.
2. Contact customer service.
3. Contact your gas supplier.
1. Contact your gas supplier.
1. Contact your gas supplier.
2. Clean burner (see Care and
Maintenance, page 25 & 26) or contact
customer service.
1. Clean burner orifice (see Care and
Maintenance, page 25 & 26 or contact
customer service.
2. Contact dealer or customer service.
3. Replace gas regulator.
1. Check burner for dirt and debris. If found,
clean burner (see Care and Maintenance,
page 25 & 26).
2. Replace gas regulator.
3. Contact your gas supplier.
1. Take apart gas tubing and remove foreign
matter.
2. Locate and correct all leaks (see
"Checking Gas Connections," page 19).
1. This is common with most heaters. If
noise is excessive, contact qualified
service technician.
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