Why isn't my commercial range burner igniting or staying lit? Common causes, what you can check, and when to call technicians.
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Food debris, grease, or mineral deposits can block the small holes (ports) where gas escapes to form the flame. This prevents proper gas flow and ignition.
The igniter creates a spark to light the gas, and the spark module controls this process. If either fails, the burner won't light.
The burner may not be receiving enough gas. This could be due to a partially closed gas valve, a problem with the main gas line, or low pressure from the utility.
Each burner has a valve that controls gas flow. If this valve is stuck, dirty, or broken, it won't allow gas to reach the burner.
The air shutter, which controls the mix of air and gas, might be misadjusted. This can lead to a weak flame, yellow flame, or no ignition.
See if other burners on the range are working correctly. If all burners are out, it strongly suggests a problem with the main gas supply.
Carefully examine the burner ports for any visible blockages like food particles or grease. Ensure all ports are clear.
If ports are blocked, gently clean them with a thin wire or needle. Remove the burner cap and head (if possible) and clean thoroughly.
Turn the burner knob to the 'light' or 'ignite' position and listen/look for a spark. If there's no spark, the igniter or spark module may be faulty.
Locate the air shutter (usually a small adjustable ring near the gas orifice) and ensure it's not completely closed off or obstructed.
Multiple burners are not working
This often indicates a problem with the main gas supply to the appliance, which requires professional diagnosis and repair to prevent gas leaks or fire hazards.
You smell gas
This is a critical safety hazard. Immediately turn off the gas supply if possible, ventilate the area, and evacuate. Do not operate any electrical switches or appliances. Call for professional service from a safe location.
Burner ignites but flame is yellow or weak
This suggests an incorrect air-to-gas mixture or low gas pressure, which can lead to inefficient cooking, carbon monoxide production, or incomplete combustion. It requires professional adjustment or repair.
No spark is produced by the igniter
A faulty igniter or spark module requires specialized tools and knowledge to diagnose and replace safely, involving electrical components and gas lines.
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Look up your brand's error codes for commercial range burner not working — we cover the most common codes for each brand we service.
This page provides general diagnostic guidance for commercial range burner not working. Specific causes and repairs vary by appliance brand, model, and condition. For accurate diagnosis, contact a licensed appliance repair technician. Repairs involving refrigerant systems, gas lines, or high-voltage circuits require certified professionals — DIY attempts on these systems may be illegal and dangerous.
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