E9
Drazice
Power Supply / Voltage Error
Drazice digital heater shows E9; unit may shut down completely.
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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
Incorrect supply voltage, loose terminal block connections, internal power supply failure on control board, blown internal fuse
How to Fix / Troubleshooting
Safety: Only qualified persons should work on live electrical circuits. Always turn OFF the breaker before opening the terminal cover.
Steps:
- Remove the terminal cover and inspect the mains connection block. Tighten all phase and neutral screws to the torque specified in the manual.
- Check for signs of overheating or burning at the terminals and wiring.
- Verify supply voltage with a multimeter at the terminal block; it must match the rating on the heater nameplate (e.g., 230 V single-phase).
- Locate any internal fuses on the control board or near the terminal block. With power OFF, test continuity and replace blown fuses with identical type and rating.
- If supply and fuses are correct but E9 persists, the internal power supply section of the control board may be defective and the board should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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