Zanussi
Reduced Heating Performance
Oven heats but takes a very long time to reach temperature, food undercooked
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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
Partially failed heating element (hairline crack), Faulty thermostat or temperature sensor reading too high, Door seal leaking heat, Convection fan not running
How to Fix / Troubleshooting
Safety first: Disconnect power before testing elements or fans.
Step-by-step checks:
- 1. Check preheat time: Time how long the oven takes to reach 180°C. If it exceeds 15–20 minutes, performance is reduced.
- 2. Inspect door seal: Check the Zanussi door gasket for gaps, tears, or flattened sections. Replace if not sealing evenly.
- 3. Verify fan operation: In fan mode, ensure the convection fan runs strongly. Replace the fan motor if slow or not running.
- 4. Test elements: Measure resistance of each element and compare to specifications. Replace any element with significantly higher resistance or visible damage.
- 5. Check sensor/thermostat: If the oven cuts off early, the sensor or thermostat may be misreading. Replace the temperature sensor (NTC) or mechanical thermostat as appropriate.
Warning: Avoid using foil to cover the oven base or walls; this can alter heat distribution and damage elements.
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Repair Difficulty
Medium
3/5
Required Part
Oven Door Seal, Fan Oven Element, Temperature Sensor
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