Error 5 Whirlpool Cooktop HB 41H

Error 5 Whirlpool Cooktop HB 41H

I have a Whirlpool Induction Cooktop HB 41H thru Ikea and want to know what Error 5 means and how to repair it. Does anybody know how to and send me a repair manual. Whirlpool does not want to give this or even refusing to tell what Error 5 means. The Error appears in red digitals F5.