The yellow is a sign of incomplete combustion due to lack of air pre air mixture to the burner mixer tube, which is outside diy and should be looked at by a qualified engineer.
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If the LPG cylinders have the correct pressure regulator, no need to use an extra one but any regulator must be set to the correct pressure or removed.
Bolcked injectors and blocked burner jets . I would also check and see if you have a valve on the that might be not be fully on . All points to lack of gas pressure I would also check the reg on your tank or bottle .
Hi Anita,
I am not shure, but do this cooker have already flame faillure device?
In that case I thnk this is the problem.
If not, it is a clogged nozzle.
You can remove that nozzle, that is under the burnercap, with a 7 mm wrench. Then clean it so you can see trough it and put it back.
They look like the ones in the link.
Ream out all the orifices and air venturi holes on the burner, adjust the air-ahutter, the air-shutter is usually nearer the valve/knob than to the burner. Yellow flame is an imbalance of fuel to oxygen and is creating Carbon Monoxide and not burning cleanly... this is the same problem that can make a furnace deadly. Blue flame=neutral flame.
Try removing the burners and soaking in hot soapy water. If this doesnt work, an old trick is to burn the dirt out. Put the burner in the oven and bake it. The heat will soften any dirt and then washing the burner in hot soapy water usually removes the build up. Try poking a needle into the holes to clear them.
Sounds like the front burner gas jet holes are either blocked in places or the gas regulation (air/gas) mix to that burner needs adjusting. Try removing the hub where the gas burns from and cleaning each hole with something like a paperclip and then blowing through it to expel any particals.
stoves have a pressure regulator as the flex line from the house connects to the stove, it's about 2 inches by 3 inches in dimension and it has a knot in the middle and one to the side of it that is to the front of it that second one you can unscrew and put that knot the other way or upside down, that's the position for natural gas, now some regulators do not have it, in that case get one that can do that,or that is for lp and natural gas. then you must close the air a little bit on all the burners the vent is located as the burner meets the valve that supplies gas to the burners. and that vent is part of the burner.
check the burner orifice and gas valve spring kit if it is suited for propane use.remove carbon build up inside the fire tubes.check also if the gas pressure is correct.
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