AEG
Complete Heating Failure
The oven does not heat at all – the fan and light may work, but there is no warmth in any mode.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blown thermal cut-out (safety thermostat), open-circuit main heating element, failed power relay on the control board, broken live feed to elements
How to Fix / Troubleshooting
Safety first: Isolate the oven from the mains supply before removing panels.
- Test multiple modes: Try conventional, fan, and grill modes. If none of them heat, suspect a common supply issue (safety thermostat, wiring, or control board).
- Check safety thermostat: Locate the thermal cut-out on the top or rear of the oven casing. Test for continuity. If it is open and has a reset button, press to reset. If it is non-resettable and open, replace it.
- Inspect wiring: Follow the live feed from the terminal block through the safety thermostat to the elements. Repair any burnt or loose connections.
- Element continuity: If all elements are open-circuit, the issue is likely upstream (thermostat/control board). If only one is open, replace that element.
Warning: Do not bypass the safety thermostat; it is critical for fire prevention.
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Repair Difficulty
Medium
3/5
Required Part
Safety Thermostat (Thermal Cut-Out)
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