Gas oven not igniting at all; no clicking sound from igniter.

Safety first: Isolate both gas and electrical supplies before working on the appliance.

• 1. Check power: Ensure the cooker is plugged in and the socket is live. The ignition system requires mains power.
• 2. Test other burners: If hob burners also do not spark, suspect the ignition module or power supply. If only the oven is affected, suspect the oven electrode or lead.
• 3. Inspect electrode: Locate the oven igniter electrode near the burner. Check for cracks in the ceramic or heavy carbon build-up. Clean gently and replace if damaged.
• 4. Check ignition lead: Ensure the high-voltage lead is firmly connected to both the electrode and the spark generator. Look for signs of arcing or insulation damage.
• 5. Replace spark generator: If no burners spark and power is present, the ignition module is likely faulty and should be replaced with the correct Rangemaster part.