Why does my Trevi boost shower not turn on?

If your right about cold pushing hot, it may give you an indication about your other taps. The venturi cartridges in these shower can be very temperamental, they have a temperature limiter in the bottom of the cartridge that can sometimes become misaligned or fail which can cause the symptoms you are describing.

Are there any spares for the Trevi therm?

There are 18 currently available spares for the Trevi Therm MK1 built in 300 thermostatic. These are sorted by diagram reference first (if available) and then by product code in numerical / alphabetical order: Do you have a question about the Trevi Therm MK1 built in 300 thermostatic?

Why do I have no water coming through my shower head?

If there is little hot water coming through the shower, but the cold water pressure is fine, the problem will be related to the hot water unit. Again, check out the hot water taps in the house and if the hot water pressure is fine to those taps, it will the washers in the hot tap of the shower that will need to be replaced.

Is there a problem with the Trevi boost shower?

I have a Trevi Boost Venturi Shower which had a slightly reduced flow. I’ve removed the boost cartridge and cleaned it but now have the following problem when reinstalled.

Where is the flow valve for the shower?

Check your water flow valves for the shower. The valves regulate the flow of water to your bathroom. These may be located right behind the shower wall or underneath the sink. Check them to make sure that they are in the open position.

What to do when your shower water won’t come out?

Check them to make sure that they are in the open position. Sometimes the valves may be bumped and can turn off. Remove the shower head by unscrewing the head counterclockwise from the shower neck pipe. Turn on the water to the shower to see if any water is coming out.