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JGBS66REK2SS Oven Won't Heat – What Part Fixes This Problem?

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Understanding the Problem

If your GE JGBS66REK2SS gas oven turns on but never reaches temperature or never lights, the most common cause is a failing oven igniter (also called a glow igniter). The igniter must draw enough current to open the gas safety valve. When it weakens it may glow but not allow the valve to open, so the burner never lights even though the control appears to work. Other possible causes include a faulty safety gas valve that won't open even with a good igniter, a malfunctioning electronic oven control that won't send power to the igniter/valve, or a wiring connection issue. Diagnosing which component is at fault requires basic tests: observe the igniter behavior and timing, measure current/continuity where appropriate, and inspect controls and wiring for visible damage.

Common Symptoms

Oven igniter glows but burner never lights; oven takes extremely long to reach set temperature; oven does not heat at all; clicking or repeated ignition attempts; error codes on display (if applicable).

Common Causes

  • Weak or failing oven (glow) igniter
  • Faulty safety gas shut-off valve
  • Defective electronic oven control or wiring problem

Popular Parts That Fix This Problem

These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.

Common replacements: WB13K21 / 5303935066 (verify with model)Oven Glow Igniter (hot surface igniter)
Common replacement example: WB21X5086 (verify with model)Safety Gas Shut-Off Valve (oven gas valve)
Example: WB27K5010 (control board numbers vary by production run)Electronic Oven Control / Clock (EOC)
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Helpful Repair Tip

Watch the igniter when you call for bake: a healthy igniter glows bright orange within 10–20 seconds and the burner lights almost immediately. If it glows weakly or takes much longer than 30 seconds, the igniter is likely the faulty part.

Frequently Asked Questions

How can I test the oven igniter to see if it’s bad?

First visually inspect the igniter: when you set the oven to bake it should glow bright orange within ~10–20 seconds and the burner should light soon after. If it glows dimly or takes much longer, it’s likely failing. For a more definitive test use a multimeter: with power off, remove access panels and check the igniter for continuity (many igniters will show continuity but a weak igniter can still fail under load). The best electrical test is an amperage draw test while calling for heat — a healthy igniter typically draws around 3.2–3.6 amps (specs vary by model); a significantly lower draw indicates a weak igniter that needs replacement.

Can I replace the igniter myself, and is it the most likely fix?

Yes — replacing the oven igniter is a common DIY repair if you have basic hand tools and are comfortable working with the power and gas appliance safety. Always unplug the range or switch off the breaker and shut off the gas supply before starting. The igniter is usually accessible behind the oven floor or rear panel. While the igniter is the most common cause when the oven won’t heat, confirm it is the issue using the visual/timing test or an ammeter first. If replacing the igniter doesn’t restore heating, the gas valve or control board may be at fault and may require professional service.

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