Trouble shooting
17
Fault
Possible Cause
Remedy
Pilot won’t light.
No gas supply or gas isolation
valve is OFF.
Ensure gas isolation valve is turned on,
and that gas tanks are not empty.
Pilot burner is clogged/blocked. Check the pilot burner if clogged, and
clean, or replace if necessary. Follow
the FDS removal procedure.
ODS injector is clogged.
Check the ODS injector if clogged, and
clean if necessary. Follow the ODS
injector removal procedure.
ODS injector is damaged.
Check if the ODS injector is
blocked/damaged, and replace it if
necessary. Follow the ODS injector
removal procedure.
Pilot goes out when gas
control knob released.
Releasing the knob
before the
thermocouple has
heated.
Hold the knob in for at least 10~20
seconds following ignition of the
pilot.
Gas pressure too low.
Check the pressure of the main line if
within standard. Adjust the pressure if
necessary.
NG – 1.0KPa and LPG – 2.75KPa.
Partially blocked ODS injector.
Clean the ODS injector or replace the
ODS injector if necessary. Follow the
ODS injector removal procedure.
Thermocouple connection to
the safety gas valve is loose.
Tighten the thermocouple
connection.
Faulty thermocouple or ODS.
Replace the thermocouple or ODS.
Follow the thermocouple removal
procedure.
Faulty safety gas valve.
Replace the safety gas valve. Follow
the safety gas valve removal procedure.
PILOT TROUBLE SHOOTING
CHECKING & CLEANING OF THE ODS INJECTOR:
1. Visually check the orifice of the pilot injector
if clogged, damaged or blocked. If it cannot
be checked visually, try to blow air in the
injector and check if there is air coming out
of the orifice.
2. If the orifice is blocked or clogged, use an air
blow to remove the clogging. Never pinch
the orifice with a pin as this could damage
the orifice.
3. If the clogging cannot be removed from the
orifice by air blow, replace the injector with
a new one. Remember to check the size of
the orifice and replace with the same size.
4. Follow the ODS injector removal procedure.
FLAME DEVICE SYSTEM
PILOT
BURNER
THERMO
COUPLE
IGNITER
ROD
ODS
INJECTOR
ODS INJECTOR
ORIFICE
NOTE:
When you order a Flame Device System
(FDS), the ODS injector is not included. The ODS
injector can be ordered separately.
