There's nothing more disconcerting when doing your laundry than hearing a strange knocking, bumping or scratching sound.
Unusual sounds emanating from your washing machine can have many causes – watch our video and follow the steps below to get to the bottom of the problem.
Read on for a step-by-step guide on how to fix strange noises.
Before doing any sort of maintenance on your washing machine, you should turn it off and fully unplug it. If your machine is mid cycle when it starts to play up, follow advice in your washing machine's instruction manual for stopping and draining it.
Items that get into the drum can cause both strange sounds and a number of problems. Research and feedback from Which? members has shown the most common culprits are coins and bra wire.
Having experimented by putting £1 coins into a variety of washing machines, we found you typically have about 15 minutes to hear them rattling around and pinging off the door before the sound of the wash drowns them out. Bra wire makes more of a scratching sound.
Most of our test £1 coins remained in the drum or caught in the rubber seal - so these are the first places to check.
Some items loose in the machine can work their way down to the filter. You'll usually find the filter at the front of the machine, on the right and close to the floor. On some models, the filter will be on the side.
Follow the instructions in your instruction manual to check and clean the filter, or view the above video.
The big danger is that items will slip between the rubber seal and the metal drum and fall into the surrounding plastic tub. Items that don't get washed down into the filter can be flung about violently by the drum's rotation, especially during the spin cycle.
Our test £1 coins have been known to be flung with such force by the drum that it's penetrated the outer plastic tub, which can potentially flood your kitchen and write off your machine.
If an item does get stuck in this area, it's likely to make a very loud noise when the machine's running, especially during the spin. If you suspect an item has got caught here, stop the machine and call a repairer.
The cost of removing the drum assembly for many washing machines is very high, and combined with the call-out cost, it may work out cheaper to buy a new washing machine - we've found Best Buys for less than £350.
If you're considering replacing your washing machine, our guide to the reveals which brands are less likely to let you down, based on the data we've collected from thousands of washing machine owners.