--- title: "Uneven Range Burner Flame: Causes and Fixes" description: "A gas burner flame is taller on one side, has gaps, burns yellow or orange, lifts off the burner, or roars instead of burning quietly." url: "https://rangerepair.center/problems/burner-flame-uneven/" --- # Uneven Range Burner Flame A gas burner flame is taller on one side, has gaps, burns yellow or orange, lifts off the burner, or roars instead of burning quietly. ## What it usually means. A healthy flame on a range burner is mostly blue, with small even cones all the way around the head and a steady, quiet burn. Uneven or yellow flames mean gas and air are not mixing or leaving the burner as they should: ports blocked on one side, a cap off center, a head not seated after cleaning, or a burner set up for a different gas. On a range converted between natural gas and propane, the wrong orifices give tall yellow flames or weak ones that lift away. A lazy yellow flame leaves soot on pans and burns less cleanly, so it is worth correcting. The 6 causes, cheapest first Answer these first 01 Is one burner uneven, or every burner on the range top? 02 Are the flames mostly blue, or yellow and orange at the tips or throughout? 03 Do flames lift off the burner or go out on the lowest setting? 04 Is there soot on the bottoms of your pans? 05 Has the range ever been converted between natural gas and propane, or moved to a new home? ## Check these before you book. Uneven range burner flame: 5 checks, and none of them costs anything. 01 If you smell gas, leave and call the gas utility from outside; if a flame is tall, yellow and wild, turn that burner off and leave it off. 02 Once cool, lift the cap, check that the head is seated, and set the cap back flat and centered. 03 Look at the ports around the head for baked-on food, and clean them only the way your manual describes. ### Also worth checking - Compare with the other burners: one bad burner points to that burner, all of them to the setup or the supply. - When you book, tell us if the range was ever converted between propane and natural gas. ### How soon does it need a visit? An uneven flame is usually a matter of cleaning or setup rather than an emergency. Stop using a burner whose flame is tall and yellow, lifts off, or goes out, and never use one that smells of gas; with any gas odor, get everyone out and call the gas utility from the yard or the street. ## The causes, cheapest first. 6 things uneven range burner flame turns out to be, from blocked ports on part of the burner to low-setting adjustment drifted. [The cost guide](https://rangerepair.center/cost/) 1. 01 no repair ### Blocked ports on part of the burner Spills that bake into the ports leave a gap in the ring of flame or push it to one side. Cleaning the head the way the manual describes restores it. No repair: check it yourself 2. 02 no repair ### Cap or head not seated A burner head sitting a little high, or a cap that is not centered, gives a lopsided flame and sometimes a faint hiss. No repair: check it yourself 3. 03 no repair ### Dust or steam in the room air Dust from a renovation, a humidifier near the range, or salty steam from a pot can put orange flecks into a flame that is otherwise fine. They come and go with the air in the kitchen. No repair: check it yourself 4. 04 low to moderate ### Wrong orifices for the gas type Natural gas and propane need different orifices, and many ranges need a change at the regulator as well. A range left on the wrong setup burns with flames that are too large and yellow, or too small and lifting. [Fixed by burner and igniter repair](https://rangerepair.center/services/burner-and-igniter-repair/) [On a gas range](https://rangerepair.center/types/gas-range-repair/) 5. 05 low ### Air opening under the burner partly blocked On some burners the air that mixes with the gas enters through an opening below the range top, and grease or debris there starves the flame of air. [Fixed by burner and igniter repair](https://rangerepair.center/services/burner-and-igniter-repair/) 6. 06 low ### Low-setting adjustment drifted Each burner valve has a low-flame adjustment. After a conversion or with wear, it can be set so low that the flame wavers and goes out on simmer. [Fixed by burner and igniter repair](https://rangerepair.center/services/burner-and-igniter-repair/) ## What else it could be. Most often confused with range burner won't light, then range burner keeps clicking. [All problems](https://rangerepair.center/problems/) Codes that come with it - [`ER01` Hestan · Burners and ignition](https://rangerepair.center/error-codes/hestan-smart-burner-er01/) Also related - [**Range Burning Smell** 6 causes · gas, fire or electrical risk](https://rangerepair.center/problems/range-burning-smell/) ### Range Burner Won't Light 6 causes ### Range Burner Keeps Clicking 5 causes Gas, fire or electrical risk ### Range Gas Smell 6 causes ## The makes it happens on. 32 makes on this site; uneven range burner flame can show up on any of them. Each mark opens that make's own page. [All 32 brands](https://rangerepair.center/brands/) ## Uneven Range Burner Flame, where we come out. 9 metros, each with its own page. 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Brief orange flecks from dust or a humidifier are harmless. A flame that stays yellow or orange, or leaves soot on pans, is getting too little air or the wrong gas setup and should be checked. ### My flames are fine on high but go out on low. Why? The low setting is adjusted at each burner valve, and after a conversion or with wear it can end up too low for the flame to hold. That is an adjustment for a technician, not a knob fix. ### Can I convert my range to propane myself? No. Conversion changes orifices and often the regulator, and it is gas work that has to be done and tested by a qualified technician or the installer. A mistake shows up as flames that are too big or burners that will not stay lit. ### Does a yellow flame give off carbon monoxide? A flame that burns poorly produces more carbon monoxide than a clean blue one. Run the vent fan while cooking, keep a carbon monoxide alarm in the home, and have a yellow flame corrected. --- **[Read on the site: Uneven Range Burner Flame: Causes and Fixes](https://rangerepair.center/problems/burner-flame-uneven/)** **[Book a visit with RangeRepair.center](https://rangerepair.center/schedule/)**