What should I do if a burner does not ignite within 4 seconds?
Turn the burner off and check to see that the burner cap is positioned correctly on the burner base and that the igniter is clean and dry. If the burner still fails to ignite, refer to the Before Calling for Service section. (Page 5)
From the official Bosch NGT73, NGP73, NGT93, NGP93 Gas Cooktops manual, page 5
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