Electronic clock/programmer display shows F1 and oven will not heat

Safety first: Isolate the range from the mains supply by switching off at the cooker switch and removing the fuse or turning off the circuit breaker. Confirm power is off before removing any panels.

• Access the sensor: On most New World built-in ovens and freestanding cookers, the oven temperature sensor is a metal probe at the rear of the oven cavity, usually top left or top centre, held by 1–2 screws.
• Check for damage: Inspect the probe for burns, cracks, or broken insulation. Gently tug the wires to ensure they are firmly connected and not broken where they pass through the rear panel.
• Test resistance: Disconnect the sensor plug at the rear (you may need to pull the cooker forward and remove the rear cover). Using a multimeter on ohms, measure across the sensor terminals. A typical New World NTC sensor reads roughly 1–1.1 kΩ at 20°C. If it reads open circuit (OL) or near 0 Ω, the sensor is faulty.
• Check wiring to the clock: Trace the sensor harness from the rear of the oven to the electronic clock/programmer (EOC) behind the control panel. Look for chafed insulation, burnt connectors, or loose plugs. Reseat all connectors firmly.
• Replace the sensor if faulty: Remove the mounting screws inside the oven, gently pull the sensor into the cavity, feed the cable through, and transfer the new sensor, routing the cable exactly as original to avoid contact with hot surfaces.
• If sensor and wiring test OK: The fault is likely in the electronic clock/programmer. Replacement involves removing the control panel, labelling and transferring each connector to the new module. If you are not confident, use a qualified appliance technician.