My mum has a Gainsborough Impulse 9.5W Shower and the control knob will not turn. We have taken the front panel off and we can't see any broken parts. If we press the water control valve the water comes through as normal. When I put panel back on the control knob is still jammed. It's very stiff and will not turn around. Clues, anyone?! Thanks!

Gail, January 2012

it may be the cogs that join the control knob to the flow valve or the flow valve is stuck, either way call national shower spares for advice 0845 126 4141 or visit www.showerspares.com

gary, January 2012