John for Model Number Thermador Range model # RDSS30 The left rear XLO burner fails to light. Gas is coming out from that burner. I see a spark to all four burners. I can light it manually with a match or by sparking any other of the three burner knobs.
Answer John, If the burner is sparking but no lighting then you will want to check to make sure that the burner head and the burner cap are clean. If they are not then this could cause the gas to flow but not light. The other thing that it could possible be would be a bad spark igniter if the ceramic on the igniter is cracked. Read More... Answered by AppliancePartsPros.com | Tuesday, August 2, 2016