// Check if the rows exists
if( have_rows('repeater_field_name') ):
    while( have_rows('repeater_field_name') ) : the_row();

        if( get_sub_field('field_name') ): 
	     <p>Value: <?php the_sub_field('field_name'); ?></p>
        endif;

    endwhile;
else :
   echo 'No data';
endif;