Problem summary
Your Nordmende DOIC integrated double oven is not reaching temperature, the fan isn't running, yet the light switches on. This combination suggests an electrical fault affecting the heating elements or fan motor, rather than a simple thermostat misset.
Likely causes
Based on repair patterns across the DOIC range:
Heating element failure (most common) The oven's main heating element may have burned out or lost electrical continuity. When this happens, the oven cannot generate heat, even though other circuits (light, electrics) work normally.
Fan motor fault The circulation fan motor may have seized, failed electrically, or lost power. A working fan helps distribute heat evenly; if it's not running, the oven won't reach safe operating temperature.
Control board or wiring issue An electrical fault in the oven's control board or internal wiring can cut power to both the heating element and fan motor while leaving the light circuit intact.
Why this needs an engineer
All three likely causes involve sealed electrical components or mains-voltage heating elements. These require specialist diagnostic equipment and safe disconnection/replacement by a qualified engineer.
Attempting to disassemble the oven cavity, replace elements, or test internal wiring carries risks of electric shock, burns, or damage to sealed refrigeration systems in integrated units. Nordmende DOIC models are built into cabinetry, which adds complexity to safe access.
What to check before calling: - Confirm the oven control dial or digital display is set to the correct temperature and mode (fan-assisted bake, conventional, etc.). - Check that the oven door is fully closed; some models have a safety interlock that prevents heating if the door is ajar. - Look for any visible damage, scorch marks, or loose wiring visible around the oven cavity.
If the oven still won't heat after these checks, or if you see visible damage, a qualified engineer needs to diagnose the fault and recommend repair or replacement of the faulty part.
If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.