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Make Wm Fill With More Water

JOjohnny20270
Asked about 12 years ago 6,179 views
0

Hi all, great forum. I didn't know one even existed

I have a Bosch WAS28466GB/05 Washing Machine

It is one of these 'Eco' machines which personally I think is rubbish. It never seems to wash clothes or rinse as well as my cheapo Beko machine. I believe the reason is that there never seems to be enough water in the machine. The water pressure is fine, no filters clogged etc

It has always been like this since day one so I suspect its a design of the machine and not the actual pressure sensor.

Is there anyway to alter this or allow the machine to fill with more water. There is an actual setting on the machine to allow more water but I can never tell the difference.

The water never comes up more that 10% of the drum.

Any thoughts?

Thanks all

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Bosch WAS28466GB/05 uses low visible water by design

The problem
Owner felt the Bosch WAS28466GB/05 did not wash or rinse well because the drum only showed a small amount of water, even with the extra water setting. The machine had behaved this way since new. Water pressure was reported as fine and inlet filters not clogged.
Likely cause
The strongest diagnosis in the discussion is that the low visible water level is normal for this eco model rather than a fault. A pressure system issue was mentioned only as a possibility if rinsing is genuinely poor on every programme, but this was not confirmed.
What fixed it
No adjustment to increase fill level was advised. Recommended actions were to judge performance on a rinse cycle, try the Water Plus or similar option, and check loading, programme choice, detergent and wash temperature rather than relying on visible water level. If poor rinsing persists on all programmes, further diagnosis should be carried out by a suitably qualified appliance engineer.
Checks to try
  • Water pressure reported as fine
  • Inlet filters reported as not clogged
  • Try a rinse cycle to assess fill/rinsing
  • Use the extra water / Water Plus setting
  • Check load size, programme choice, detergent and wash temperature

Safety: Do not try to modify the fill level or internal settings. Isolate the appliance from the mains before inspecting any internal parts. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 11 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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1 Answer

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WH
WhitegoodsHelp AIAI Assistant
Answered 3 months ago

Hi, and welcome. What you’re seeing is very likely normal for that Bosch rather than a fault. Modern Bosch “eco” washers often use surprisingly little visible water, and on many models the clothes are lifted through a shallow pool rather than sitting in a deep bath of water. So seeing only a small amount at the bottom of the drum is not, by itself, proof of underfilling.

A few sensible checks:

1. Check it on a rinse cycle Rinses usually give a better clue than the wash phase. If it still seems very mean on rinse, that’s more useful diagnostically than judging the main wash alone.

2. Use the “Water Plus” or similar option If your model has an extra water / extra rinse setting, try it with a mixed cotton load. On some machines the increase is modest, so the difference can be hard to see.

3. Don’t underload or overload These machines can judge load size. Very small loads may use very little water, but overloaded drums can also wash poorly because items can’t move properly.

4. Check wash performance rather than water level alone If it heats, tumbles properly, drains well and spins normally, then poor results may be down to programme choice, detergent, load size, or low wash temperatures rather than actual low fill.

5. If you suspect a pressure system issue If it genuinely rinses badly on every programme, a pressure chamber/pressure switch fault is possible, but altering the water level is not normally an adjustable user setting on modern Bosch machines.

Important: always isolate the appliance from the mains before inspecting any internal parts. I wouldn’t recommend trying to modify the fill level, as it can upset heating, rinsing and overflow protection. If you want internal checks done, use a qualified appliance engineer.

WhitegoodsHelp AI

WhitegoodsHelp AI Assistant

This answer was generated automatically by the WhitegoodsHelp AI Assistant. It is not provided by an engineer or any other qualified person, may be inaccurate or incomplete, and is not professional or technical advice. Do not rely on it. Always use your own judgement and consult a qualified engineer before carrying out any electrical, gas or water work. Use is entirely at your own risk. See our full Terms of Use.

SAFETY FIRST: READ BEFORE ACTING ON THIS GUIDANCE

  • Never work on a live appliance

    Always unplug it at the mains before going near it with any tools.

  • Never attempt gas work

    By law, gas appliances must only be worked on by a Gas Safe registered engineer. If your fault involves gas, stop and call a professional. Do not attempt it yourself.

  • Watch for sharp edges

    Outer panels are smooth, but internal parts have sharp machined edges. Wear protective gloves and arm sleeves.

  • Water appliances can leak

    Turn off the water supply before disconnecting any hoses.

  • Know your limits

    If you are not confident testing or working inside the appliance, stop and call a professional.

  • AI guidance, not guaranteed

    This response is generated automatically by the WhitegoodsHelp AI Assistant. It is not professional or technical advice, may be incomplete or wrong, and must not be relied upon. Always use your own judgement and consult a qualified engineer before any electrical, gas or water work.

This is general information only and is not professional advice. The WhitegoodsHelp AI Assistant is not an engineer and is not qualified. See our full Terms of Use.

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