Today’s pool professional has learned to incorporate automatic swimming pool cleaners into their service routine and retailers are frequently selling these maintenance accessories to their customers. With a vast number of automatic swimming pool cleaners in the market, industry professionals must now be well-versed in troubleshooting common problems as well as successfully correcting user-error issues. Like any robotic product, there are common user errors and sometimes faulty parts that can cause an automatic swimming pool cleaner to malfunction. This article provides a number of troubleshooting techniques for service and retail professionals when automatic swimming pool cleaners are not working properly.