Jetmaster 3000 cold
Sorry for the delay in replying
First I would check that you actually have hot water going to the shower.
If you have then I think you are going to need a new shower as most of the parts for this unit are obsolete
http://www.showerdoc.com/gns-parent-67-gainsborough-jetmaster-1000---3000
Answered 12 years ago by The Shower Doctor
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