No hot water
First check that the inlet filters are clear, if they are Ok then wind it back and forth between fully hot and fully cold 10 or 20 times this may just release the parts inside the cartridge.
If this doesn’t work then you are going to need a new cartridge if you don’t know what cartridge you need then can you send us a couple of photos of the cartridge, if you can’t get photos of the cartridge can you then send us photos of the shower with the knobs on and with the knobs and cover plate removed
Answered 12 years ago by Anonymous
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Gainsborough GS700 Shower Spares
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