: Gas leaks check-furnace
• Release the button (43), close the furnace, squeeze the tube (6) tight and press and hold
the button (43).
• If the pressure on gauge (12) remains constant, then the furnace has to be checked for
leaks.
• If the pressure shown on gauge (12) drops, then the leakage must be somewhere before
the furnace, between oxygen inlet and furnace.
6.14.1 Leaks in the furnace inlet system
• After following the above instructions, check the inlet tubes (6) for leakage
6.14.2 Leaks in the furnace
• After following above instructions, close the furnace, squeeze tight the tube (9), press and
hold the button (43), observe the pressure gauge (12).
• If the pressure drops, then the furnace is leaking. Check whether the O-rings (16), (17)
and (18) are dirty or defective. See chapter O-Rings replacing.
• Check whether the combustion tube (15) is broken or cracked. See chapter Combustion
tube replacing.
• If the pressure remains constant, then the leakage must be after the furnace.
6.14.3 Leaks in the furnace outlet system
After following the instructions in the section Leaks in the furnace, check if the handle (8) is
properly shut, or else there will be a major gas leakage from the dust filter. Check the dust trap
(10) and the glass tube (11) for leakage.