If the controller display shows a station running, flashing sprinkler icon ( ), or arrow pointing towards running, it sounds like the controller is doing its part. Maybe the water has been shut off to the zone valves. Go to the zone valve and turn the solenoid (where the wires are connected) 1/2 turn counter clockwise. If the valves have water, the sprinklers will come on even without the controller. See illustration below for activating the valve solenoid manually:
If the sprinklers turn on manually by twisting the solenoid, then the next step is to check for the proper voltage.
To confirm the proper voltage is getting to the valves using a voltmeter, follow the steps below: