Bosch WAE28220

If the “spin/centrifuge” and “done/end” lights are flashing together, it often means the machine thinks it has a draining problem, but it does not always mean the pump filter itself is blocked. If the little drain hose is empty, that usually just means there is no water left sitting in the sump at that moment.

Before checking anything internal, isolate the washing machine from the mains.

1. Check whether it is actually draining Run a rinse and spin. Listen near the pump area at the bottom front. If you can hear the pump running but little or no water reaches the standpipe, there may be a blockage further along rather than in the filter.

2. Check the drain hose and sink plumbing Pull the appliance out and inspect the main drain hose for kinks, crushing or a blockage. If it drains into a sink spigot, remove the hose and check the spigot itself is not clogged.

3. Check inside the pump housing With the filter removed, look inside with a torch. Check for debris around the pump impeller. It should turn with slight resistance, not be jammed or floppy/broken.

4. Check the sump hose A common blockage is in the large hose between the drum tub and the pump, where coins, grips or fabric collect. This needs access from below or the rear depending on version.

5. Consider the pump itself If the pump hums, is noisy, or drains weakly, the pump may be failing even if the filter is clear.

The small emergency hose does not usually “clog” separately very often; it is only a drain-off tube from the same sump area. If you are not confident opening hoses or checking live drain operation, it is best to get a qualified appliance engineer. Any mains electrical work should be left to a qualified person.

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