Kenmore Cooktop NO-SPARK Error: Igniter Produces No Spark — Gas Burner Will Not Light
The kenmore cooktop no-spark error is a fault signal from the control board — this guide walks through what it means, common causes, and safe diagnostic steps. What Does Kenmore Cooktop NO-SPARK Mean? NO-SPARK on a Kenmore gas cooktop describes the failure condition where turning the burner knob to the ignite position produces no clicking […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. A cooktop with a non-sparking burner can be used by lighting the affected burner with a long-reach lighter or match held to the burner head before turning on the gas — this is safe for a short time while parts are ordered. However, do not attempt to light the burner by opening the gas valve and then searching for a lighter; always have the flame source ready before opening the gas valve.
Can I reset the code?
No. NO-SPARK is a hardware failure — a broken electrode, dead spark module, or open wire — that cannot be resolved by any reset procedure. The faulty component must be identified and replaced. Cleaning food debris from the electrode is the only maintenance action that can restore spark without parts replacement, and only if debris was the sole cause.
When to stop immediately?
Stop if you notice: Gas is detectable by smell at the burner and no flame source is immediately available — turn off the gas valve and ventilate the area, All four or five burners have lost spark simultaneously, indicating the spark module has failed.
Symptoms You May Notice
No clicking sound and no visible spark when the burner knob is turned to Light
The spark module produces no output at all when the ignition switch on the affected burner is activated — the characteristic clicking sound is absent and no arc is visible at the electrode gap above the burner cap.
Other burners on the cooktop may spark normally
Because each burner has its own electrode but all share a single spark module, a fault in one burner's electrode wire or ignition switch leaves the others functioning. If all burners fail to spark simultaneously, the module or its fuse is the more likely cause.
Gas flows from the burner but produces no ignition
The user can hear or smell gas at the burner head when the knob is in the Light position, confirming the gas valve is open, but without a spark the gas does not ignite. This is a potentially dangerous condition — do not allow gas to accumulate.
Knob feels normal but no detent click at Light position
The knob rotates and pushes in smoothly but the usual tactile click from the ignition microswitch is missing or mushy, suggesting the switch contact behind the valve is not closing when the knob reaches the Light detent.
Possible Causes
Failed or cracked igniter electrode
The ceramic-insulated spark electrode at the burner has a cracked insulator or a corroded tip, preventing the high-voltage arc from jumping to the burner cap. Cracks in the white ceramic body are often visible on close inspection.
DIY PossibleFailed spark module (igniter module)
The central spark module — a small box typically located beneath the cooktop — has failed and is not generating the high-voltage output needed for ignition on one or more burners. A failed module usually causes all burners to stop sparking simultaneously.
DIY PossibleBroken or disconnected igniter wire
The high-voltage wire from the spark module to the electrode at the affected burner has broken, is disconnected at a terminal, or has a damaged insulation that allows the spark to arc to the chassis rather than the electrode tip.
DIY PossibleSafe Checks You Can Do
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1
Check all burners and identify the scope of the failure
Turn each burner knob to the ignite position one at a time and note which burners spark and which do not. If only one burner fails to spark, the problem is isolated to that burner's electrode, wire, or ignition switch. If all burners fail simultaneously, the spark module or its power supply has failed. Document which burners are affected before disassembling anything.
Also check that the cooktop is plugged in and receiving power — the spark module requires 120 V AC to generate the high-voltage output. A tripped GFCI outlet or a loose power cord can cause all burners to lose spark at once.
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2
Inspect the electrode tip and ceramic insulator for damage
Remove the burner grate, burner cap, and burner head from the affected burner position. Use a flashlight to inspect the white ceramic electrode body for cracks, chips, or heavy corrosion at the metal tip. The gap between the electrode tip and the burner cap should be approximately 3/16 inch (5 mm). Clean any food residue from the electrode tip and burner cap with a dry toothbrush. Reassemble and test.
Do not use water or liquid cleaners on the electrode ceramic — moisture in the insulator body causes the high-voltage arc to leak to ground through the wet ceramic rather than jumping the gap to the burner cap. Allow the cooktop to dry completely before testing if any liquid has contacted the electrode.
When to Call a Professional
Contact a qualified technician if:
- Spark module produces no output voltage at any terminal when tested with the cooktop energized — module replacement required
- Igniter wire insulation is melted or the wire has broken at the module or electrode terminal
- Gas valve on the affected burner does not close fully when the knob is in the Off position — a separate and more urgent gas valve repair
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