I read another post with a similar problem as mine. Oven takes 25:16 minutes to reach 350’ to finish preheat. I do notice that the oven light does go off and on also while preheating never constant. Thanks
Most of the time, long preheat/cooking times indicate a weak igniter.
Frigidaire 5303935066 Oven Igniter - AppliancePartsPros.com
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I believe your right…Its has its age… Thanks …