A problem with your washing machine could spell trouble for your whole household. Laundry piles up fast, after all. Luckily, many washing machine problems can be investigated and repaired quite easily. As long as you are familiar with some of the basics about how a washing machine works, you will be able to check the components of your washer one by one and find the one that's giving you trouble.
Make sure the washer is plugged into an electrical socket in your wall. Also check that the hot and cold water tubes are connected to the faucets in the wall. Make sure the faucets are on by turning them to the right until they stop (this is the off position), then turn them three to five full turns to the left to open them up. If the hoses are leaking, turn the off faucets and replace the hoses.
Go to your fuse box and make sure no fuses are tripped. If they are all on, you can rule out a power issue with the washer. Go back to the washer and unplug it from the electrical socket so you can begin an in-depth investigation of your problem.
Open the washer's lid and look for the lid switch. It is usually located right under the washer lid along the rim. If it is damaged, it can affect your washer's ability to operate. If you flip the lid switch, plug the washer back in and still have a problem, your lid switch fuse may be blown.
Remove the back panel of your washing machine using a screwdriver. Remove the big rubber hose that runs from the washer tub to the pump, and check it for any clothes or other items that may have become stuck in the drain tube or between the washer tubs. Remove any stuck items with needlenose pliers. If this tube is leaking, replace it.
Replace the washer pump. Often, drainage problems are caused by worn out pulleys or impellers inside the pump.
Inspect the washer motor and all belts and pulleys. Any damaged belts should be replaced by one from the manufacturer. Some washers have a plastic coupling between the motor and the transmission which can become worn over time, and it must be replaced if there is visible wear and tear on it.
Check the water inlet valve where the hot and cold water hoses enter the washer. If there is a buzzing noise but no water coming in, you must replace the inlet valve.
Repairs such as replacing the clutch, transmission, main tub seal, agitator or outer tubs should all be done by a professional. These are difficult, technical repairs that the average do-it-yourselfer may have problems with.