Our Troubleshooting & Diagnostics guides help homeowners quickly identify what’s wrong with their appliances and understand whether the fix is simple or requires a professional. Each article is based on real technician workflows, symptom-based diagnosis, and the most common issues for refrigerators, washers, dryers, dishwashers, ovens, and more. If your appliance isn’t working as expected, start here to pinpoint the cause and learn the safest next steps.