I've got a situation where a Mira Thermostatic shower starts off at the right temperature but during the course of it being on it gets cooler. Not cold, but gradually gets colder. If you turn the shower temperature up it gets hotter, but then the temperature starts to reduce again. I get probably 2 minutes before it gets cooler and then 1 minute every time I turn it up.
The thermostatic shower has been replaced and it's still doing it, and probably getting a bit worse. The taps in the bathroom, kitchen and utility room seem fine, but I think the bath tap is also doing something similar. I think this is because the flow of the water is greater for the shower and bath compared to the taps.
The boiler is a Viessmann Vitodens 111-w 32kw storage combi and was installed in November 2022, and the problem has only been in the last month or so. It's under warranty, but Viessmann are saying it's nothing to do with the boiler, but the system itself. As the shower has been replaced I find it hard to believe it would be the pipes. I feel the issue could be a diverter value, heat exchanger or something with the storage element (thermometer?). But wondered if any of the people on this forum could suggest what it could be? Are Viessmann just trying to get out of the warranty obligations?
Happy to provide any more info if needed.
Thanks!!
The thermostatic shower has been replaced and it's still doing it, and probably getting a bit worse. The taps in the bathroom, kitchen and utility room seem fine, but I think the bath tap is also doing something similar. I think this is because the flow of the water is greater for the shower and bath compared to the taps.
The boiler is a Viessmann Vitodens 111-w 32kw storage combi and was installed in November 2022, and the problem has only been in the last month or so. It's under warranty, but Viessmann are saying it's nothing to do with the boiler, but the system itself. As the shower has been replaced I find it hard to believe it would be the pipes. I feel the issue could be a diverter value, heat exchanger or something with the storage element (thermometer?). But wondered if any of the people on this forum could suggest what it could be? Are Viessmann just trying to get out of the warranty obligations?
Happy to provide any more info if needed.
Thanks!!
