24
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
When igniter knob is
pressed in there is no
spark at ODS/pilot.
Igniter electrode is
positioned wrongly.
Cables between switch,
battery pack, igniter and
igniter electrode may be
loose, pinched, wet or
broken.
Bad igniter
No battery or battery used
out.
Reposition igniter electrode.
Secure or replace cables
between switch, battery pack,
igniter and igniter electrode.
Replace igniter.
Install or replace battery.
When igniter knob is
pressed in there is a
spark at ODS/pilot but
no ignition.
Gas supply is turned off or
equipment shutoff valve is
closed.
Control knob not fully
pressed in while pressing
igniter button.
Air in gas lines when
installed.
ODS/pilot is clogged.
Control knob not in PILOT
position.
External shut off valve on
gas supply opened too fast
and blocked appliance
regulator in heater.
Turn on gas supply or open
equipment shutoff valve.
Fully press in control knob while
pressing igniter button.
Continue holding down control
knob. Repeat igniting operation
until air is removed.
Clean ODS/pilot or replace
ODS/pilot assembly.
Turn control knob to PILOT
position.
Close external shut off valve
and re-open slowly.
ODS/pilot lights but
flame goes out when
control knob is released.
Both control and igniter
knobs are not fully pushed
down.
Thermocouples are not
heated enough.
External shutoff valve of gas
supply is not fully opened.
Thermocouple connections
are loose or damaged.
Control valve damaged.
Press in both the igniter and pilot
knobs fully. While holding igniter
down, set control knob to number
5. Run heater for 15 minutes.
After ODS/pilot lights, keep both
knobs depressed for at least 15
seconds.
Fully open equipment shutoff
valve.
Secure or replace thermocouple
connections.
Contact customer service.
Burner(s) does not light
after ODS/pilot is lit
stably
Burner orifice is clogged.
Burner orifice diameter is too
small.
Inlet gas pressure is too low.
Clean burner orifice or replace
burner orifice.
Contact customer service.
Contact local gas supplier.
Delayed ignition of
burner(s).
Manifold pressure is too low.
Burner orifice is clogged.
Contact local gas supplier.
Clean or replace burner orifice.
Burner backfiring during
combustion.
Burner orifice is clogged.
Burner is damaged.
Gas regulator or/and
appliance regulator are
defective.
Clean burner using compressed
air or replace burner orifice.
Contact customer service.
Contact customer service.
Slight smoke or odor
during initial operation.
Residues from
manufacturing processes.
Problem will dissipate after a few
hours of operation in high setting.
Ensure appropriate ventilation
during this time.
Heater produces a
whistling noise when
burner is lit.
Turning control knob to Hi
position when burner is cold.
Air in gas line.
Air passageways on heater
are blocked.
Dirty or partially clogged
burner orifice.
Turn control knob to LO position
and let warm up for a minute.
Operate burner until air is
removed from line. Have gas line
checked by local gas supplier.
Observe minimum installation
clearances
Clean or replace burner.
