Owner's manuals for Aprilaire products past and present are available for free on the company's website and include in-depth maintenance and operating instructions. Additional troubleshooting support can be found on the website's FAQ page.
FAQs on the website are conveniently sorted by product type for maximal searchability. Troubleshooting topics covered under the Humidifiers heading include questions about the meaning of a flashing red light on a Aprilaire digital humidifier control or the failure of the change water panel light to reset after changing the water panel. Should further support be needed, Aprilaire offers customer support by phone throughout the week.