This question is regarding Trevi Outline A3700 built-in thermostatic Shower Valve Spares

Only cold water - flow or thermostat problem

Since we moved in our shower has always had poor pressure. Now if it's set to a normal shower temperature there is virtually no flow, but if you turn it to cold you get the usual poor flow. Is this a thermostat cartridge issue, or could the hot flow value failed?
Asked 5 years ago by Libby Hughes, Hatfield
Check that the head, hose and filters on the thermostatic cartridge are not blocked. Then check that the flow valves are working. If all is fine , then you may have a faulty thermostatic cartridge.

Answered 5 years ago by Barrie Seabright

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