If you're facing problems with your dishwasher， it's important to know how to repair it instead of calling a professional. First， check if the dishwasher is properly connected to the power source and the water supply. Here are some other steps to fix your dishwasher:

1. Clean the dishwasher filter: Begin by turning off the power supply and removing the lower spray arm which can be typically lifted off. Then， unscrew and remove the filter before washing it under running water. Reinsert the filter into the dishwasher and replace the spray arm.

2. Remove the clog from the drain hose: If the dishwasher is not draining water， it might be due to a clogged drain hose. Take out the drain hose and use a straightened clothes hanger or a plumber’s snake to remove any blockages.

3. Check the dishwasher pump: If the water is not circulating， it might be due to a faulty pump. Remove the lower front panel of the dishwasher， locate the pump， and remove it. Check the pump impeller for any debris or damage， and clear any issues that are causing blockage.

4. Inspect the water inlet valve: The water inlet valve is responsible for the flow of water in and out of the dishwasher. If the valve has failed， it will need to be replaced. Disconnect the power supply and water supply to the dishwasher， and detach the valve from the hose. Check for any corrosion or damages and replace it accordingly.

5. Clean the dishwasher spray arm: If you find that dishes aren’t coming out clean or still are dirty， there might be blockages in the spray arm. Unscrew and remove the spray arm and wash it under running water. Check for any blockages or damages， and replace it if required.

When attempting any dishwasher repair， it’s always important to take the necessary safety precautions and ensure power is turned off before beginning the repair work. With the right tools， it's possible to fix your dishwasher and give it a longer life span.