Russell Hobbs
Underheating / Temperature Regulation Fault
Oven heats but does not reach the set temperature or takes excessively long to cook food.
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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 oven element (high resistance), Faulty temperature sensor (NTC) reading too high, Miscalibrated thermostat or control PCB, Door seal leaking heat
How to Fix / Troubleshooting
Safety first: Turn off power before accessing internal components.
- Check door seal: Inspect the rubber gasket around the door for gaps, tears, or flattening. Replace if damaged.
- Test with oven thermometer: Place an oven-safe thermometer in the centre of the cavity and compare actual temperature to the set temperature over 20–30 minutes.
- Inspect elements: Ensure all elements (top, bottom, fan) glow or heat evenly during operation. Replace any that remain cool or heat only in sections.
- Check sensor: Test the oven temperature sensor resistance at room temperature and compare with specifications. Replace if out of range.
- Control calibration: Some models allow minor temperature calibration via the control panel; refer to the user manual. If large discrepancies remain, the control PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor (NTC Probe)
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