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TROUBLESHOOTING
If NO IGNITION LIGHT remains lit for more than 20 seconds after three trials (Models GCO4S AND GCO4D/
GCO6D), or "E-05" appears in the display after three trials (Model GCO4C/GCO6C):
• Turn oven off for 5 minutes before attempting to relight.
• Check gas supply valves to be sure they are open.
• Check electrical power source and connections.
Contact personnel qualified to install and repair gas equipment for any other service problems.