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6. The pilot flame
goes out after the
ignition cycle.
The thermocouple is burnt out.
Replace the thermocouple.
There is a bad contact in the
circuit of the thermocouple.
Restore the contact.
The thermocouple is not in or
insufficiently in the flame.
Reposition the thermocouple further
in and/or bend the pilot cup
(horizontally or slightly upward).
The pilot flame is set too low.
Adjust the pilot flame. Use a larger
nozzle if necessary.
The pilot flame is contaminated. Clean the pilot burner with
compressed air.
The electromagnet is defective.
Replace the electromagnet.
7. The pilot flame
burns
but the main
burner does not
come on.
The flow adjusting screw is
screwed down.
Loosen the adjusting screw.
The burner pressure is
inadequate.
Adjust the burner pressure until
correct.
The injector is clogged.
Clean the injector.
There is an internal defect in the
gas valve.
Replace the gas valve
immediately
!
The controller is defective.
Replace the controller.
8. The gas valve is
open and there is
immediately gas to
the pilot flame.
The valve of the electromagnet is
contaminated.
Clean or replace the electromagnet.
There is an internal defect in the
gas valve.
Replace the gas valve
immediately
!
9. The thermostat
valve is shut and
yet there is gas to
the burner.
The valve of the thermostat is
contaminated.
Replace the gas valve.
There is an internal defect in the
gas valve.
Replace the gas valve
immediately
!
10. The flames are
too small.
The pre-pressure is too low.
Check the pre-pressure.
The burner pressure is too low.
Adjust the burner pressure until
correct.
The injector is contaminated.
Clean the injector.
The wrong type of gas is being
used.
Check the gas type (red lacquer =
natural gas; green lacquer =
propane).