E6
Russell Hobbs
Main Control PCB Temperature Circuit Fault
Oven shows E6 and may not respond to temperature changes or may heat erratically.
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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
Failed temperature measurement circuit on main PCB, Dry solder joints on sensor input, Overheated or damaged components on control board, Incorrect sensor type fitted previously
How to Fix / Troubleshooting
Safety first: Disconnect the oven from mains before accessing the control board.
- Confirm sensor is OK: Before blaming the PCB, test the oven temperature sensor resistance at room temperature and at a warm temperature (e.g., after heating with a hairdryer). If readings change smoothly and match specifications, the sensor is likely good.
- Inspect PCB: Remove the top cover and carefully take out the main control PCB. Look for burnt areas, cracked solder joints around the sensor connector, or bulging capacitors.
- Reseat connectors: Unplug and replug the sensor connector and any related harnesses to ensure good contact.
- Board replacement: If visible damage is present or E6 persists with a known-good sensor, replace the main control PCB with the correct Russell Hobbs spare part. Transfer any configuration jumpers as per the service documentation.
- Reassemble and test: After refitting, run the oven at several temperatures to confirm stable operation.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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