No hot water in shower

3 yr old new build, shower never been great. Hot water stopped coming out of shower tap but does come out of the bath tap and other taps in the house. Changed the cartridge, no improvement, so put original cartridge back in. Then couldn't turn shower water off so had to isolate the water to the shower. Hot water bath tap pressure is now less since isolating shower. Bath has an anti scald / blending valve. Can anyone give me any suggestions on what to try next?

JuG - GU6

Asked: July 09 2018


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