causes of yellow flame in gas stove

Causes of Yellow Flames on a Gas Stove?

If you have a gas stove, you may have noticed that sometimes, your flame looks more yellow than blue. This isn’t just an aesthetic issue; it’s actually an indication of something wrong with your stove. 

Causes of Yellow Flames

Several issues can cause yellow flames, some of which are easy to fix, and others require professional help. Here are some common causes of yellow flames on gas stoves:

The Burner Ports Are Clogged.

The flames will take on a yellow tint when the burner ports are clogged. You will need to remove and then clean the burners to fix this problem. Try gently rubbing them with steel wool or sandpaper before reattaching them to see if they work properly again. If they still don’t work correctly, try replacing them with new parts picked up at your local hardware store.

Suppose none of these fixes work for your gas stove’s yellow flames. In that case, it may be time to call upon an expert. A technician can diagnose what’s wrong and ensure that everything runs smoothly before deciding whether or not it’s time for a complete replacement.

The Gas Is Not Burning at The Right Temperature.

The appliance needs more fuel if you see yellow flames on your gas stove. Gas stoves are designed to have blue flames with a ring of yellow around them. If you see yellow flames instead of blue ones in the middle and around the edges, there needs to be more pressure from your gas line. 

You can fix this by adjusting the pressure on your regulator (a small knob at the end of a long hose). It’s best to talk with a professional before making any adjustments yourself.

There Is Poor Combustion Because of The Wrong Gas Mixture.

If the flame is yellow, you need more oxygen to combust your fuel. Several things can cause this, but usually, you have opened the air control valve too far. To fix this problem, simply open the air control valve and leave it open when using your stove. Use a screwdriver to turn the knob until it’s open.

The Gas Pressure Is Too Low.

The flame may be yellow if the gas pressure is too low. If you notice that your stove’s flames are always yellow and weak or flicker a lot, it means that there isn’t enough gas in the line to keep them going. The solution is to check with your landlord about installing a gas pressure regulator, which will increase gas flow and ensure you have plenty of fuel for cooking.

If you are unsure what “low” means as far as pressure goes, ask someone who owns their own home how much it should be set at.

The Burner Holes Are Partially Open.

If your gas stove produces yellow flames and you are pretty sure it’s not due to dirty burners or a clogged chimney, then the likely culprit is blocked burner holes. You can test this using a screwdriver to turn on the stove and observe whether your burners are producing yellow flames. 

If so, then you are in luck! 

It’s just a matter of cleaning out the blocked holes with some steel wool, which will help clear up the problem faster than replacing the burner itself (though sometimes that’s unavoidable).


If you find the yellow flames on your gas stove are less consistent than they once were, there are a few easy fixes. The first thing to check is whether or not there might be something clogging up the ports of your burners. 

If this is the case, simply take some tongs and remove any debris inside them before turning on the heat again. If it continues after doing so, try cleaning out each port with a pipe cleaner soaked in vinegar!


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