13
12. 90% of the appliance is made of metal (stainless steel, iron, aluminum, galvanized
metal sheet), which can be recycled by appointed treatment plant according to the
environmental standards of the equipment installed countries in force. (No littering!)
8. Failure Analysis & Trouble Shooting
Symptoms
Causes
Solutions
The pilot flame cannot
be lit up.
1. Pressure in gas pipeline is
not enough.
2. The nozzle is blocked.
3. Connection of thermocouple
is loose.
4. The
thermocouple
is
defective.
5. The gas control valve is
defective.
1. Regulate
the
reducing
valve.
2. Unblock the nozzle.
3. Tighten the thermocouple.
4. Replace the thermocouple.
5. Replace the gas control
valve.
The pilot flame is on but
the main burner cannot
be lit up.
1. Pressure in gas pipeline is
not enough.
2. Main nozzle is blocked.
3. The gas control valve is
defective.
1. Regulate
the
reducing
valve.
2. Unblock the nozzle.
3. Replace the gas control
valve.
It has a light-back sound
when turning off the gas
supply.
1. Nozzle diameter does not
match with the gas supply.
2. The damper is too large.
3. The supply pressure is too
low.
4. Flow of connected pipe is not
enough.
1. Regulate
the
nozzle
diameter.
2. Adjust the damper.
3. Regulate
the
reducing
valve.
4. Increase the permitted flow.
It has red flame and
black smoke.
1. Nozzle diameter does not
match with the gas supply.
2. The damper is too small.
3. Gas nearly runs out.
4. Gas ingredients are volatile in
gas peak period.
1. Regulate
the
nozzle
diameter.
2. Adjust the damper.
3. Replace the gas.
4. Decrease the gas flow.
Increase it after the peak.
Aforementioned troubles are just for reference. If any failure occurs,
please stop using and inform the professional technicians to check and
repair. Safety is first and maintenance should be done after shutting
down the power supply and gas supply.
