Soot problem from using gas burners, smeg oven???

Then it sound slike your thermostat is not work . you coiuld try cleaning burner or injectore first . but I would say thermostat

If you are getting soot residue, it could be a number of things, First, is this a natural gas or propane oven? If you bought an oven to be used for propane, it may need to be converted from natural gas to propane or it will soot everything up. 2nd, have you recently spilled food/liquid onto the oven burner? If the burner holes are partially plugged, the remaining holes will burn large yellow flames and soot up the oven. Check the burner flames, they should be mostly blue with little to no yellow tips. Also make sure the oven burner flames are not too big. They should never exceed the width of the flame spreader pan directly above the burner, in fact they should be less than half the width. You could also have other issues like improper air shutter adjustment to the oven burner or very low regulator pressure, but most likely it has just been spilled on recently.

Normally soot is from a range that hasn't been converted for the gas type, like natural or propane. It may be set up for natural when you're on propane or visa versa. Has this range ever worked properly without sooting?

It shouldn't be burning yellow and emitting soot at all;sounds like on of these possible causes-
(a)blocked burner airways(this can lead to yellow tipping and sooting on LPG powered appliances because insufficient air is getting through to the burner causing it;you can also get this effect on LPG barbecues say if dead insects or spiderwebs are in the burner pipes and airways after a period of storage),
(b)incorrect aeration being set when the burner was converted using LPG jets(too much gas and not enough air causing yellow flames/smells and sooting),
or (c) if you use propane cylinder gas a dicky or faulty regulator. I would get it looked at investigating all the possibilities I mention and taking action to correct this where necessary ie clearing the burner airways(if this is causing your problem), adjusting the aeration in the burners until you get a clear noiseless blue flame without any excessive yellow and sooting(but even after good adjustment you may find still get a very slight yellow tip without sooting at the top of the flame;this does happen with propane gas and there is a slight tendancy for this to happen more often with butane-butane tends to display very slight yellow tips on ignition increasing slightly as the burner warms up to full temperature) or if you use propane cylinder gas replacing the regulator if that is necessary.

it sounds like the main oven is in timer mode on the timer please read instructions
to rectify

Look at the bottom of the oven and see if you can remove the panel, if its all one piece then take out broiler pan and look inside to see if you acan get to the pilot burner. Good Luck

You need a C.O.R.G.I. (soon to be re-named "gas safe" in april) engineer qualified for LPG to sort this.

The vent (shutter) allowing air to mix with the gas has shut. Access the burner with the oven off, of course, and look for the shutter (a sliding 'door'). It usually has one screw holding it n place and an elongated slot to permit adjustment. It may also turn. Since your burner is producing soot, you need to open the shutter more. Loosen the screw and slide the shutter open more. Turn the oven on and look for a nice blue flame, and one that doesn't run too far over the burner. Keeping in mind that everything there will be hot when the burner is on, and also for a long time after it is off, you can use a long-bladed screwdriver to push the shutter back and forth to get the flame you are looking for. If the screw is loose, a gentle tap will be enough. When you are see that optimum blue flame and you are satisfied, let the oven cool off for an hour or so, and final tighten the screw--making sure you haven't moved the shutter much when tightening. If this doesn't work you have a bigger problem and need to call a service person. Your local gas company sometimes will direct you to a person.

Remove the burner tube that you said has soot on it and clean it out. This will give you a cleaner burn.

theres no danger.its the residue from the gas.if using propane,it burns very dirty and leaves soot.if natural gas its the same but not as bad.you can simply just wipe them down with water but use an old rag because the soot is very dirty.if using an electric oven/burner the discoloration of the element is from the heat and is normal.also if the oven is gas the soot will eventually clog the holes/orfices in the burner and it will cause some issues.hopes this helps--let me know.