hot cold mix

Hot water to my Trevi Therm 300 built-in is not mixing with cold once shower running for minute or two and slowly cold takes over. Plenty of hot water to basin taps but shower is problem. Any idea ? thanks mike
Asked 6 years ago by Michael
You may have a faulty , www.showerdoc.com/trevi-1-2-inch-dx-1-4-turn-flow-cartridge-anti-clockwise-close-a952501nu11 , which is causing this , and if so it is advisable to change both at the same time.

Answered 6 years ago by Barrie Seabright

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