We clean the filter after every wash but we still get black & white bits on the washing wa have cleaned the waste pipe, pump filter at the back is always clean .model no sw75usp can you help under guarantee but Norman Ross said we would have to pay if problem was ours we have checked everything but to no avail please can you help.

Open filter go to back of machine & clean the end of grey waste pipe blow into end of pipe, if u feel no restriction when blowing their is no blockage next tilt machine backwards at 45 degree angle against wall the u can look under washing check large black waste water pipe between bottom of drum and water pump for possible blockage make sure u isolate machine from electrical supply first hope this helps

clean filter at the front or back of the machine will have a turn to the left insert. where the water pipe/s fit take off take top of undo the inlet valve clean out filter. tip up washer find pump you can undo this and clean housing inlets one waste one sump pipe clean and put back clean these hoses thoroughly waste pipe blow through to make sure not blocked that's it.

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washing water is held in the pipe to the wash tub and in the pump under the machine
try using a straight wash (no clothes) with a high concentration of bleach in the machine or other available steriliser
repeat the rinse cycle after the wash has finished to ensure that any bleach is flushed from the drain pipe.

Unfortunately it is important that the dishes are rinsed before they are placed into the dishwasher as the primary job is to get your dishes sterilized and cleaned.
So please try and remote off as much of particles by showing the dishes to the wash tap or use a wiper to clean off the food particles.
In all machines there are drains to which the drain pump is fitted and there is a filter but if the dirt level is too much the filter and also the drain pump will be clogged.
You can remove the pump and back-flush using a good spray, clean the filter by removing and flushing with brushing.
Once this is cleaned the pump must work and drain the waste water.

Follow the water inlet tube till the connecting end of the m/c. You can dimantle the union here.Mostly without tools. You will fin the filter inside the pipe body. Pull it out & clean. Fix back all rubber parts back.

you will filter is blocked if you pull the machine out and the the waste pipe drop into a bowl or a bucket the water should run out the filter is underneath the tub black hose going to pump held on by screw clip remove back panel to see this UNPLUG MACHINE FIRST. undue screw clip pull down black pipe gentle there is a ball in there then a plastic filter clean and replace.

The problem is your pump or filter is blocked.
Power off the mains. The filter is located behind the silver plate at the back of the machine at the bottom. Four screws hold it on. Drain out all the water. The filter is inside the big black rubber hose attached between the pump and the main drum. Remove the plastic clip holding it to the pump unit and then the metal cir clip holding it to the main drum. Inside is a white molded cone and a big white ball which floats. You will find a lot of junk here, clean out thoroughly. To refit put white cone back inside just as you found it, at the bottom, fit ball back into the cone. Attach to the bottom to the drum and re-fasten the cir clip. Finally reconnect the gator to the pump unit and tighten the plastic clip. Check out the pump too before reconnecting.
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This is from the Whirlpool user manual for the AWO\R 4205 - it tried it and it worked well, found a hair grip and some stones in mine!

We recommend that you check and clean the filter
regularly, at least two or three times a year.
Especially:
. If the appliance is not draining properly or if it fails to
perform spin cycles.
. If the pump is blocked by a foreign body (e.g. buttons,
coins or safety pins).
IMPORTANT: make sure the water has cooled
before draining the appliance.
1. Stop the appliance and unplug it.
2. Remove the plinth by using the separator of the
detergent dispenser (fig. .A.).
3. Place a container beneath it.
4. Open the filter but do not remove it completely.
Slowly turn the filter counterclockwise (fig. .B.) until
the water begins to drain out.
5. Wait until all the water has drained.
6. Now unscrew the filter completely and remove it.
7. Clean the filter and the filter chamber.
8. Check that the pump rotor moves freely.
9. Re-insert the filter and screw it in clockwise as far as it
will go.
10. Pour about 1 litre of water into the detergent drawer
to reactivate the .Eco system.. Check that the filter is
inserted properly and securely.
11. Reinstall the plinth.
12. Plug in the appliance again.
13. Select a programme and start it.