KitchenAid Gas Stove Burner Stays On or Won't Turn Off

Common Symptoms

• CRITICAL: Gas burner flame stays lit after turning the knob to OFF
• Burner continues to click repeatedly after the knob is turned to OFF
• One specific burner keeps sparking even when its knob is in the OFF position
• All burners clicking continuously with all knobs in the OFF position
• Burner sparks and clicks immediately when the range is plugged in — before any knob is turned
• Flame flickers or reights on its own after being turned off

Most Likely Causes

1. 1

   Gas Safety Valve WP74009151 Stuck Open (DANGEROUS — Immediate Shutdown Required)

   The gas safety valve WP74009151 is the primary valve controlling gas flow to each surface burner. It is designed to close completely when the knob returns to the OFF position, cutting gas supply. If the valve seat becomes corroded, debris-blocked, or the valve mechanism fails internally, it can remain partially or fully open even with the knob at OFF. This allows gas to continue flowing to the burner — either sustaining a visible flame or releasing unburned gas into the kitchen. A stuck-open gas valve is a fire and explosion hazard and must be treated as a gas emergency: turn off the main gas supply to the range immediately, ventilate the area, and do not operate the range until the valve is inspected and replaced by a licensed gas technician. Gas valve replacement costs $80–$200 including labor.

2. 2

   Spark Module W10340303 Generating Continuous Ignition Signal

   The spark module W10340303 generates the high-voltage pulses that fire all igniter electrodes simultaneously. It receives a trigger signal when any burner knob is rotated to the START (ignite) position. If the module's trigger input circuit shorts internally, or if the wiring harness to the module develops a short to ground, the module can enter a continuous firing state — clicking and sparking even with all knobs at OFF. This is a non-dangerous failure (no gas flow) but is disruptive and must be repaired. Replacing the spark module W10340303 ($35–$75) resolves the continuous clicking in most cases.

3. 3

   Igniter Electrode W10156630 Shorted to Ground

   The igniter electrode W10156630 is a high-voltage porcelain-insulated electrode that produces the spark at the burner surface. If the electrode's porcelain insulator cracks or if the electrode wiring develops a short to the range chassis ground, the ignition circuit can fire continuously or fire spontaneously when the range is plugged in. A cracked electrode shorting to ground can also cause a single-burner continuous clicking pattern (all other burners normal, one specific burner sparks continuously). Test by disconnecting the suspected electrode's wiring and observing whether the continuous clicking stops on that burner circuit.

4. 4

   Burner Cap Misalignment Causing Continuous Spark

   A burner cap that is seated incorrectly — crooked, rocked, or placed over debris — can physically contact the igniter electrode tip. This direct contact can create a short circuit path that triggers the spark module to fire. The continuous clicking stops immediately when the burner cap is lifted and correctly reseated. This is the easiest and most common fix for single-burner continuous clicking: lift the cap, inspect the electrode and burner base, clean away any debris, and reseat the cap flat and level.

5. 5

   Moisture or Liquid in Igniter Well

   Moisture from a boilover, cleaning, or condensation can collect in the igniter electrode well — the cavity in the burner base where the electrode is mounted. Water is conductive and creates a low-resistance path between the high-voltage electrode and the burner base ground, causing the ignition circuit to fire continuously. The classic presentation: continuous clicking starts immediately after a boilover or cleaning event and affects one or all burners. The fix is thorough drying: remove grates and burner caps, dry with a towel, use a hair dryer on low heat, and allow 30–60 minutes of air drying. The clicking stops once the moisture evaporates.

Quick DIY Checks

1. 1Step 1 — CRITICAL SAFETY CHECK: determine if gas is still flowing. First, identify which type of 'stays on' problem you have. Look at the burner with the knob turned fully to OFF: (A) If the burner flame is OUT and the clicking has stopped — normal, no immediate action needed. (B) If the burner is CLICKING but no flame and no gas smell — this is an igniter issue, not dangerous. Proceed to the drying and cleaning steps below. (C) If the FLAME IS STILL BURNING after the knob is fully turned to OFF, or if you smell gas with the knob at OFF — this is a gas valve emergency. Do NOT attempt any repair. Do NOT use any electrical switches. Turn off the gas supply shutoff valve immediately (behind the range on the flex gas line — turn the valve handle 90° until perpendicular to the gas line). Open windows. Leave the area. Call your gas utility or a licensed gas technician. Do NOT use the range until the gas safety valve WP74009151 has been inspected and replaced by a professional.
2. 2Step 2 — Emergency gas shutoff procedure (if flame won't extinguish): locate the gas shutoff valve on the flexible gas connector behind the range (pull the range away from the wall to access it — range slides on rollers or feet). The flex gas line is a corrugated metal hose connecting the range to the wall gas pipe. At either end of this flex line, there is a shutoff valve. Turn the valve handle 90 degrees (perpendicular to the gas line direction = closed). Confirm the burner flame extinguishes within a few seconds of closing the valve. If the range has no accessible shutoff valve on the flex line, locate the main house gas shutoff and close it. Call your gas utility to report a suspected gas valve failure before reusing the range.
3. 3Step 3 — Dry out the igniter well (boilover recovery — most common cause): if continuous clicking started after a boilover or cleaning, moisture is the likely cause. Turn all burner knobs to OFF. Remove all burner grates. Remove all burner caps by lifting straight up. Inspect the igniter electrode wells — the recessed areas in the burner base where each white ceramic electrode is mounted. Use a clean towel to absorb standing liquid. Use a hair dryer on LOW heat setting to dry the electrode well and surrounding burner base surface — hold 6–8 inches away, move in circles to avoid overheating the ceramic electrode. Allow the range to air-dry for at least 30–60 minutes with the grates and caps off. Reseat the burner caps and test: the clicking should stop.

Repair vs Replace

Recommended Tools & Parts

• KitchenAid Gas Safety Valve — WP74009151

  OEM gas safety valve for KitchenAid gas ranges. Controls gas flow to each surface burner. Replace when the valve fails to fully close when the knob returns to OFF, allowing gas to continue flowing after shutoff. Professional installation required.

  $60–$120 (part only; professional installation required)

  Buy on Amazon →

• KitchenAid Spark Module — W10340303

  OEM ignition spark module for KitchenAid gas ranges including KSGB900E, KSGG700E, KFGD500E. Generates high-voltage pulses for all surface burner electrodes. Replace when continuous clicking affects all burners and cannot be resolved by drying or cap reseating.

  $35–$75

  Buy on Amazon →

• KitchenAid Igniter Electrode — W10156630

  OEM surface burner igniter electrode for KitchenAid gas ranges. Replace when the ceramic body is cracked, the electrode is shorted to ground, or one specific burner sparks continuously while others are normal.

  $15–$30

  Buy on Amazon →

Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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