21
21
Problem
Possible Cause
Corrective Action
ODS/pilot lights but flame goes out
when control knob is released.
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.
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.
Burner(s) does not light after ODS/
pilot is lit.
1. Burner orifice is clogged.
2. Burner orifice diameter is
too small.
3. Inlet gas pressure is too low.
1. Clean burner orifice (see
Care and Maintenance,
page 19).
2. Contact customer service.
3. Contact your gas supplier.
Delayed ignition of burner(s).
1. Manifold pressure is too low.
2. Burner orifice is clogged.
1. Contact your gas supplier.
2. Clean burner (see
Care and Maintenance
,
page 19).
Burner backfiring during combus-
tion.
1. Burner orifice is clogged or
damaged.
2. Burner is damaged.
3. Gas regulator is damaged.
1. Clean burner orifice (see
Care and Maintenance
,
page 19).
2. Contact dealer or customer
service.
3. Replace gas regulator.
High yellow flame during burner
combustion.
1. Not enough air.
2. Gas regulator is defective.
3. Inlet gas pressure is too low.
1. Check burner for dirt and
debris. If found, clean
burner (see
Care and
Maintenance
, page 19).
2. Replace gas regulator.
3. Contact your gas supplier.
Gas odor during
combustion.
1. Foreign matter between
control valve and burner.
2. Gas leak. (See Warning
Statement at top of
page 20).
1. Take apart gas tubing
and remove foreign matter.
2. Locate and correct all
leaks (see “Checking
Gas Connections,”
page 13).
