My EP310 loses its settings after a power cut — how do I fix this? On the back of the programmer, one of the jumper selection terminals is marked BATT. Move this jumper to the ON position and the memory will be retained during a power cut.
EP310 : Operating Keys and Buttons (1.7.1) . Description : The EP310 three channels programmable controller is a stylish wired timer that can be used for two central heating zones and also for the hot water. Each output will control one zone, meaning ...