There are several Wii troubleshooting tips listed on the Nintendo website. To identify the best troubleshooting technique to use, you must first identify the specific problem.
Nintendo.com lists various topic choices for troubleshooting issues with the Nintendo Wii entertainment system. These topics have subcategories that assist you in narrowing down the root cause of your problem. For example, by clicking on the topic that says Wii Console, you are then given a list of a few common possible issues. Click the links on this list to generate the tips and tricks that can potentially fix the issue. There is also a link on the site that gives information on the steps you need to take in order to get your system repaired if these tips cannot assist you.