Whirlpool gas dryer running nonstop without drying

Josh asked 3 years ago

My gas Whirlpool dryer (Model:WGD5300SQ0) starts, heats up and fires for about 8 minutes, then the flame cuts out and the ignitor cycles on and off (glows brightly) without igniting the flame. It will do this continuously until I turn it off, because the timer isn’t advancing in automatic settings. It advances in timed ones, but the clothes aren’t dried.

Can you tell me what component other than the timer (I just replaced it) would prevent the timer from advancing? I tested the thermostats and the thermal cutoff and they seem to have good readings. The resistance of the gas valve coils is in a normal range, as is the resistance of the ignitor. The flame sensor has continuity. The thermal fuse is not blown.
Any help would be greatly appreciated!

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