Ariston No Power / Main Supply Fault

Washer-dryer does not power on at all; no lights or display.

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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

Blown mains fuse, faulty power cord, defective on/off switch, failed main control board power supply section

How to Fix / Troubleshooting

Safety: Ensure the outlet is safe; do not work on live circuits.

Steps:

  • Check outlet: Test the wall socket with another appliance to confirm power is present.
  • Inspect plug and cord: Look for cuts, burns, or loose pins. Replace the cord set if damaged.
  • On/off switch: Access the control panel and test the power switch for continuity when pressed.
  • Internal fuse: Some Ariston boards have an internal fuse; inspect and replace only with the same rating if blown, and investigate why it blew.
  • Board replacement: If the low-voltage power supply on the PCB is dead (no standby voltage), the main control board will need replacement.

Note: If fuses blow repeatedly, consult a qualified technician to check for shorts.

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Repair Difficulty

Hard 4/5

Required Part

Main Control Board (Power Module)
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