1. After the pump works 2minutes, the controller will automatically self -test about 30 seconds, and then the pump will restart, this is normal situation. 2. Note: If you want the battery fully charged, please choose the battery mode"ll"and let the pump stop running at the same time. (There are 2 conditions that the pump will stop as following: 1> The tank was full. 2>Disconnect COM1 & WH terminal.)
EDWIN PUMP has been a Solar Panels for Solar Pump-ED20M-36 suppliers and company from China. Factory export series of pumps which include more than 40 series, 2000 models. We also accept OEM/ODM for many years.