The short answer
On a Freeswan dishwasher that is leaving dishes dirty, the cause to suspect first is spray arms blocked or not turning freely, with weak circulation from the wash pump behind it. The ranking below is written for the tall-tub build with a third level, which you can confirm in seconds: a shallow cutlery tray across the top of the cabinet means a third spray feed and a taller stack of water to lift. Arms, filter, dispenser, loading and programme are owner work; anything under the sump is not.
What you observe
- White cloudiness on glassware — Mineral film if it clears with a weak acid, etching if it does not.
- Dishes clean but soaking wet at the end — A drying complaint rather than a cleaning one, and rinse aid is the first thing to check.
- Greasy film that wipes off with a finger — Heat rather than mechanics: fats need temperature to move at all.
- Gritty film on everything in the load — Evenly distributed, which points at the water being dirty rather than the spray being blocked.
- Food deposits redeposited on the upturned items — Debris coming back out of the sump, which is a filter story.
- NEAR MISS — water standing in the sump at the end — That is a drainage fault, and the drainage page is the right one to read.
Causes, most likely first on this brand
- Spray arms blocked or not turning freely — Ranked first here: this is the cause that produces the classic pattern of one clean shelf and one dirty one, which no detergent or temperature problem ever does.
- Weak circulation from the wash pump — Second: if the arms turn freely, the filter is clean, the water is hot and the load is sane, then the remaining question is whether the machine is developing any pressure at all.
- Scale and hard-water film — Third: it ranks here because the test is definitive: a cloudy glass that clears with a weak acid rinse is scale, and one that does not is etching, which is permanent.
- A short cycle chosen for a heavy load — Fourth: an eco or rapid programme is a real programme with real limits.
- Incoming water not hot enough — Fifth: it is invisible from the control panel and it explains the seasonal pattern owners often describe without being able to name it.
- Detergent type, dose or a blocked dispenser flap — Sixth: stale tablets, a dose meant for soft water in a hard-water area, or detergent in the pre-wash recess rather than the main chamber all produce the same weak result.
Check in this order, and why
- Spin each arm by hand and look through the jets — Seconds to do, and it is the only cause that produces one clean shelf and one dirty one.
- Listen for a strong rhythmic wash sound mid-cycle — A machine that sounds weak with everything else clean is a circulation question.
- Try a weak acid rinse on one cloudy glass — Cloudiness that clears is scale; cloudiness that stays is etching and is permanent.
What an owner can safely check
- Run the kitchen tap hot, then start the longest hot programme — Tests temperature and programme length together, on one load.
About 10 min
- Reload with nothing nested and no tray blocking the spray — Water travels in straight lines; anything shadowed is simply not washed.
About 15 min
- Top up the rinse aid and check the detergent flap opens freely — Two reservoirs that fail quietly and change the result completely.
About 5 min
- STOP HERE if the wash sounds weak with everything above clean — Circulation is a pump question and it sits behind the sump.
Before you open anything
Safety
Switch the machine off at its spur or unplug it, and shut the isolating valve under the sink, before anything is opened — water and mains wiring sit close together under this cabinet. Never defeat the door latch to watch a cycle run with the door open; that interlock stops a hot spray at head height. Bail standing water out before tipping the machine, and expect glass in the sump, so feel with a cloth rather than bare fingers. Get a second person before you pull the cabinet out or tilt it.
When to call a technician
Bring someone in once a full hot programme on a correctly loaded machine with a clean filter still leaves food on the dishes. Call sooner if the wash sounds obviously weaker than it used to, because a failing circulation pump gets worse rather than better and it takes the heater element with it on some machines.
Nearest pages of this class
What this page does not cover
Written for Freeswan dishwashers as a class, not for one family. No family-specific page for this brand and appliance is published here yet; where one exists for your unit it takes precedence over this page. Wiring colours, torque figures and part numbers are deliberately not here: they differ by family.
