Determining whether a gas oven glow-bar igniter is bad involves observing specific startup failures and checking electrical performance. Common red flags include the oven taking over thirty minutes to preheat, or the igniter glowing a faint, dull orange instead of a bright white-hot state yet failing to open the safety gas valve. You can troubleshoot igniter health safely using a clamp-on ammeter to measure current draw. You can verify that your igniter is bad when confirming that it fails to draw the necessary 3.2 to 3.6 amps required to trip the safety valve, proving that you must replace the igniter assembly.
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