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Samsung WW80 washing machine won't drain: diagnosis and fixes

SAMSUNG WW80 range · freestanding washing machine · based on 44 similar repairs

Diagnosed by Sean McCauley · SMC Services · Last verified 10 May 2026

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Likely causes (Samsung freestanding washing machine):

Problem summary

Your Samsung WW80 is not draining water at the end of the cycle, and may also not be spinning properly. Water sits in the drum or empties very slowly. This is one of the more common faults we see on this model family, and the cause is usually a blockage or a worn component in the drainage path.

Likely causes

Based on our repair records, drainage problems on the WW80 range are most often caused by:

Pump or drain pump failure — the pump that forces water out may be blocked, worn, or have failed. This accounts for most of the faults we attend.

Blocked filter or hose — the drain filter or outlet hose may be clogged with fibres, coins, or debris. This is common and often fixable at home.

Control board (PCB) fault — less common, but the circuit board that controls the pump may not be sending the right signal. This requires professional diagnosis.

Door seal or tub blockage — water trapped behind the seal or a blockage in the internal drainage path can prevent proper emptying.

What you can try yourself (DIY)

Before calling an engineer, check these points:

Stop the machine and switch off the plug.

Check the drain filter — most WW80 models have a small access panel near the bottom front. Open it and unscrew the filter cover. Pull out any visible debris, coins, or fluff. Run a small amount of water through to test. This alone fixes many drainage issues.

Inspect the outlet hose — if your machine drains to a standpipe or sink, check that the hose is not kinked, pinched, or clogged. Straighten any kinks. If it feels blocked, you may be able to carefully flush it with water (disconnect it first and work over a bucket).

Check the pump inlet — on some models, you can access the pump area after removing the filter. Look for trapped items or obvious blockages.

Run a test cycle — after checking these, plug the machine back in and run a short cycle to see if water drains.

If the filter and hose are clear and the machine still won't drain, the pump itself is likely faulty or the control board is not triggering it. At that point, a qualified engineer will need to diagnose and replace the part.

If you're in Northern Ireland, SMC Services can usually book a repair within 2-3 working days.

When to call SMC Services

Call us if:

Our engineers carry the most common wear parts (pump, hose, seal, filter) and can often complete the repair in one visit.

Step by step

  1. Warning: do not attempt electrical or sealed-system repairs. If the problem involves the motor, pump motor, control board, or sealed refrigeration line, do not open the machine yourself. These require specialist diagnosis and tools. Stop here and call SMC Services.
  2. Signs that need professional attention. Grinding or squealing from the pump area, visible cracks or leaks in the plastic tub, burning smells, or water that won't drain even after the filter is cleared all indicate internal failure. Book an engineer visit.

Frequently asked questions

Is it safe to open the filter cover myself?
Yes, on WW80 models the filter is usually accessible from outside the machine without tools. Make sure the machine is switched off and unplugged, and that the drum is empty and cool. Have a towel ready — there may be a small amount of water trapped.
Can I use a plunger or force water through the hose?
A plunger on the drum may cause damage. If you suspect the hose is blocked, disconnect it safely (over a bucket) and gently run water through from the other end. Do not force it or use high pressure.
Why is my machine not spinning as well as not draining?
If both spin and drain are poor, the likely cause is still a blocked filter or pump — the drum cannot spin freely if water is trapped. Clear the filter first and test again.
How much does a pump replacement cost?
We don't quote over the phone. Call or book online and our engineer will diagnose the fault and give you a fixed price before any work starts.
Could a blockage damage my washing machine long-term?
Yes. If water sits in the drum for long periods, it can encourage mould and bacterial growth, and put strain on the motor. It's best to empty the drum and get the drainage working as soon as possible.

Get this fixed

The parts most often needed for this repair — order direct:

Browse all spares

Prefer a pro? A local appliance engineer can carry out this repair. SMC's own repair service covers Northern Ireland only. The parts above ship UK-wide.

Related diagnoses

About the data on this page

This page draws on 44 similar repairs from across 29 years of SMC Services records — over 116,000+ appliance repairs in total since 1997. The likely-cause percentages above are computed directly from the engineer reports we filed for this brand and fault, and we update them as new repairs come in.

SMC Services Ltd · Registered in Northern Ireland, Co. NI628091 · Domestic & Commercial Appliance Repairs.