Wolf dual-fuel range oven shows E20 and gas bake will not ignite.

Safety: Turn off gas supply to the range and disconnect power before servicing. Work in a well-ventilated area and avoid open flames.

Checks:

• Remove the oven bottom panel to access the bake burner and igniter.
• For glow-bar igniters: observe (with power restored) whether the igniter glows bright orange within 30–60 seconds of starting bake. If it does not glow or glows weakly, it is likely faulty.
• For spark ignition: listen and look for a strong, regular spark at the burner when bake is commanded.
• Inspect burner ports for heavy debris or spills blocking gas flow.
• Verify that the manual gas shutoff valve to the oven is open and that other gas burners on the range operate normally.

Corrective actions:

• Replace a weak or non-glowing bake igniter with the correct Wolf part. Do not touch the new igniter element with bare fingers.
• Clean the bake burner ports with a soft brush or compressed air; do not enlarge the holes.
• If the igniter works but the burner never lights and there is no gas odor, the oven gas valve / safety valve may be defective and should be replaced by a qualified gas technician.