If it's not a simple cause such as already mentioned, Craps, then the most likely reason is the Thermostatic cartridge has failed, and needs replacing. Although, if that price is about right, I would just replace the whole unit.
If it's not a simple cause such as already mentioned, Craps, then the most likely reason is the Thermostatic cartridge has failed, and needs replacing.
Although, if that price is about right, I would just replace the whole unit.
I'm very interested in this post as our shower has gone just the same! The water from the shower head is barely tepid although the washbasin water is hot. It's a mains shower in an enclosed freestanding "shower pod" powered from the immersion heater. I didn't know they had a thermostat unit in showers if it's mains? Do you mean the temperature control knob needs replacing? Would love to hear of any advice please - could we fix ourselves or have to get a plumber in? Thanks.
Shower Thermostat, But first check that the control Kn-----b is doing it's job and turning the Thermostat Valve, you need to take the face panel off to see this.