Recognizing a failing or completely dead glow-bar igniter on a gas range or oven involves observing specific ignition failures. Common symptoms include the burner clicking repeatedly without lighting, the oven taking an excessively long time (over thirty minutes) to preheat because the igniter draws insufficient electrical current to open the safety gas valve, or the igniter glowing a faint dull orange instead of a bright white-hot flame. You can troubleshoot igniter health safely using a clamp-on ammeter. You can verify that your corrective action is successful when replacing a weak glow-bar igniter restores rapid electrical current draw, instantly opening the safety valve and allowing the gas burner to ignite with a robust, steady flame.
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