Gainsborough style 400x shower, water only hot when dial at 12 o'clock?

How do i fix the heating on my Gainsborough Style 400X, the only time it is hot is when dial is at 12 o'clock and at this part on the dial the water is slow to come out? Water pressure and electrics in good working order.
tony, April 2007
This happened to us too, same model of shower. Had an electrician out to look at it and the element has burnt out. Cheaper to get a new shower than the part to fix it!

Hannah, April 2007
you need to check heating element, most showers has two inside one may of packed up so not heating your water fully.

hi-spec plumbing, April 2007
link Click here to see other fixes for Gainsborough.