Swimming pool heat pump- 16 -CONTROLLER OPERATION INSTRUCTIONOperation panelUnder standby state, the time and water temp. show on the display screen.1. Button instruction◆ “ ” y: ON / OFF Switch button;Press “ ” key to switch ON or OFF at any state.At the ON state, press the “ ” key into OFF state, it shows Clock, Working mode and Timerstatus.At the OFF state, press the “ ” key to start unit, it shows Water inlet temp, Working modeand Timer status.◆ “ ”: Mode key (Running automatically or manually)Press “M” key to switch unit running as automatic, heating or cooling at any state.It shows “ ” when running automatically, shows “ ” when heating, shows “ ”when cooling.