Mulitple H1 Tags – Sidebar

Hello.

I am trying to alter the template, as my page source is showing multiple <h1> tags in the source of the page. This is obviously not good for SEO as there should be only one h1 tag on the page the title.

I wish to find out what .php page, or where in the .css style-sheet, in the template shows the following code, as I wish to delete it:

<div class=”sidebar1 widgets columns-1″>
<h1 class=”screen-reader-text”>Primary Sidebar</h1>

<aside id=”text-4″ class=”widget widget_text”> <div class=”textwidget”></div>
</aside>

</div><!– .sidebar1 –>

<div class=”sidebar2 widgets columns-1″>
<h1 class=”screen-reader-text”>Secondary Sidebar</h1>

<aside id=”text-5″ class=”widget widget_text”> <div class=”textwidget”></div>
</aside>

</div><!– .sidebar2 –>

Please advise which template file I should change.

Many thanks in advance…Great template BTW!