H20
Ariston Water Inlet / Fill Timeout Fault

Machine does not fill with water or fills very slowly; H20 or H2O error displayed.

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Possible Causes

Closed or partially closed water tap, clogged inlet filter screens, faulty water inlet valve, low household water pressure

How to Fix / Troubleshooting

Safety: Turn off water supply and unplug the appliance.

Steps:

  • Check taps: Ensure both hot and cold taps (if applicable) are fully open and hoses are not kinked.
  • Clean inlet filters: Turn off taps, disconnect hoses from the rear of the machine, and remove the small mesh filters inside the valve inlets. Rinse under running water and reinstall.
  • Test water flow: Briefly open the taps with hoses directed into a bucket to confirm strong flow from the household supply.
  • Check inlet valve: If flow to the valve is good but the machine still does not fill, the solenoid valve may be faulty. Access the valve from the top, test coil resistance with a multimeter, and replace if open or shorted.

Tip: After reassembly, run a quick wash to confirm proper filling.

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Repair Difficulty

Easy 2/5

Required Part

Water Inlet Valve
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