E18
Hansa
Low-Voltage Power Supply Fault
Hansa oven shows E18 and the display backlight or indicators flicker or go dark intermittently.
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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
Failing power supply section on control board, Loose neutral or live connection, Defective transformer or switching power supply IC, Intermittent mains connection at terminal block
How to Fix / Troubleshooting
Safety first: Disconnect power before opening any panels. Mains voltages are present on the control board.
- Check mains terminal block: Access the rear connection box and ensure all screws on the terminal block are tight and there are no signs of overheating.
- Inspect control board: Look for bulging capacitors, burnt resistors, or cracked solder joints in the power supply area. Reflow solder or replace components only if you are qualified.
- Replace control board: If the low-voltage supply is unstable and component-level repair is not feasible, replace the entire control module.
When to call a technician: Power supply faults involve live circuits; professional repair is strongly recommended.
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Repair Difficulty
Professional Required
5/5
Required Part
Electronic Control Board
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