The answer to 'pressure washer moldy' is that a moldy pressure washer is often caused by improper storage, lack of maintenance, or using the pressure washer in damp environments. Symptoms include visible mold growth, musty odors, and poor performance. To solve this, you should thoroughly clean and disinfect the pressure washer, ensure proper drying and storage, and consider replacing any heavily damaged parts.
If the mold problem is extensive or you're uncomfortable handling it yourself, it's best to call in a professional cleaning service. They have the right equipment and expertise to safely and effectively remove mold from pressure washers.