The short answer
A HOMCOM dishwasher leaving dishes dirty is usually short of spray coverage or water temperature rather than suffering a failed pump. The first thing to check: loading blocking the spray, or items nested together. The filter and the arms take a quarter of an hour and settle most of these complaints.
What you observe
- A gritty film on glasses and the inside of cups — Dirty wash water, which is the filter.
- One rack clean and the other not — Spray coverage: an arm blocked or not turning.
- NEAR MISS — there is standing water in the bottom at the end — Water left in the tub is a drainage fault, and it spoils cleaning as a side effect. Read the drainage page for this brand.
Causes, most likely first on a HOMCOM dishwasher
- Loading blocking the spray, or items nested together — Water cannot clean a surface it never reaches. Bowls nested, large plates shielding the rack behind them, and pans laid flat all leave a load that comes out half clean with nothing wrong with the machine. A small chamber is easy to overload and easy to misjudge, and on this class the loading mistake is genuinely more common than the part failure.
- Filter and sump loaded with debris — The filter keeps food out of the recirculating water. Once it loads up, the machine washes with dirty water and redeposits soil onto everything, which shows first as a gritty film on glasses. The service parts on this class are thin and cheap, which is exactly why they are the first thing to give and the easiest thing to put right.
- Spray arm holes blocked, or arms fouled by tall items — The arms have to spin freely and reach every rack. Holes blocked by seeds or scale narrow the pattern, and a tall item that stops an arm turning leaves a whole section of the load untouched. The service parts on this class are thin and cheap, which is exactly why they are the first thing to give and the easiest thing to put right.
Check in this order, and why
- Look at how the load was arranged when it failed — Third, free, and a real cause rather than a polite excuse. It is first because it is the highest-ranked cause here.
- Lift out the filter at the bottom of the tub and look at it — First because it is free, quick, and the most common cause by a distance. Second: the next most likely, and free to rule out.
- Spin each spray arm by hand and check the holes are clear — Second: free, and it explains a load that is clean in one place and dirty in another. Third, and only once the two above are clean.
What an owner can safely check
- Reload with soiled faces angled toward the centre and nothing nested — Leave a gap between items and keep tall pieces out of the arms path.
About 15 min
- Run a hot cycle empty with a dishwasher cleaner or white vinegar in the tub — This clears grease and scale from the arms and the sump, and it is the honest baseline before judging anything else.
Tools: white vinegarAbout 90 min
- STOP HERE if the next step needs a panel off or a meter on live terminals — Everything past this point belongs to a technician.
Before you open anything
Safety
Switch the machine off at the breaker before removing any panel or reaching behind it. A capacitor can hold a charge after the power is off. Wear gloves when clearing a filter or a sump: broken glass collects there and is not always visible. Never mix cleaning products in the tub, and never use bleach with a detergent that contains chlorine.
When to call a technician
Call when the filter, the arms, the loading, the temperature and the detergent have all been checked and the results are still poor, or when the wash sounds noticeably weaker than it used to. Call immediately if the machine smells of burning during a cycle. If the dishes come out cold at the end of a cycle, mention it when you book: that points at the heater rather than at anything the owner can reach.
Nearest pages of this class
What this page does not cover
This page covers HOMCOM dishwashers as a class, not one family or model line. Where a family- or model-specific page exists for your unit, that page is the more specific answer and the one to read first. Deliberately not here: wiring colours, torque figures, part numbers and service-manual sequences, which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
