Disconnect the meter cable from the circuit board and clean the contacts and see what happens. If no help, then take the meter turbine out (of the outlet) on the control valve and make sure it spins freely by blowing on it. Blow toward it from the control valve (it measures as water flows out of the control) watching the display and see if you see and pulsing icon etc.. If so then put it back, if not then the meter, cable or circuit board is bad.