When the surface burners on a gas kitchen range operate normally with strong flames while the main oven cavity fails to heat up or light, the malfunction points to components isolated specifically to the oven's gas safety circuit. Common culprits include a weak glow-bar igniter that fails to draw enough electrical current to open the primary safety gas valve, a burned-out thermal fuse, or a faulty electronic control board relay. You can troubleshoot gas heating safely. You can verify that your corrective action is successful when testing the igniter draw or replacing a weak glow-bar igniter restores proper electrical current flow, opening the safety valve and allowing the oven burner to light successfully.
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