Hotpoint Aqualtis won't fill

Hi Justin,

You’ve already covered most of the usual causes, so you’re narrowing it down well. On these Hotpoint/Indesit machines the inlet valves are normally mains-operated, so they usually need around 230V AC to open when the PCB calls for fill.

A few sensible checks:

1. Isolate the appliance from the mains before removing panels or testing wiring. If you do live voltage tests, only do so if you are fully competent and safe working on mains electricity.

2. Check whether it is definitely completing the drain stage properly. If the machine still thinks there is water inside, it may refuse to fill. Even with a new pressure switch/sensor, check the air chamber at the tub end of the small hose for gunge or partial blockage.

3. Measure for 230V AC across the valve connections during the fill part of the cycle, not just on one wire to chassis. If there is no voltage when it should be filling, that points more towards the control PCB, a wiring issue under load, or possibly a door lock/status problem preventing the fill command.

4. Check the door interlock carefully. If the lock signal is not being recognised by the PCB, some models will drain but never move on to fill.

5. Inspect the PCB closely for burnt relay tracks, dry joints, or signs of damage, especially around the valve output area.

If the valves, pressure system, wiring continuity, and water supply are all confirmed good, then yes, the PCB becomes a strong suspect. Whether it is worth repairing depends on the age and condition of the machine, but PCB repair by a specialist is often cheaper than replacing the whole appliance.

If you’re not confident with mains testing or board diagnosis, it’s best to use a qualified engineer.

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