Okay. Worked it out.
I needed to change
if( have_rows('service', 'services') ):
while( have_rows('service', 'services') ): the_row();
to
if(get_field('service', 7)):
while(has_sub_field('service', 7)):
the second variable needs to be the post id not the page name.
Found the code on the ACF documentation.
http://www.advancedcustomfields.com/resources/how-to/how-to-get-values-from-another-page/
Under the heading: Working with the Repeater Field.
I thought I had read the page all the way through.
Hope it helps others.
