Freephone: 0800 0 319 200

Telephone: 0161 941 5571

Email: sales@ctm.co.uk

Victor & Percy

Changing a Shower Cartridge

Return to Plumbing page - click here

The task of changing a thermostatic shower cartridge is not, on most showers, a complicated job. If there has been a change in water pressure, by converting to an unvented system operating on mains pressure for example, a high pressure cartridge may be required.

Faulty thermostatic shower Removing the splash guard

Faulty thermostatic shower

Removing the splash guard

Gaining access to the fixing screws Removing the temperature dial

Gaining access to the fixing screws

Removing the temperature dial

Exposing the cartridge

Before starting ensure that a compatible cartridge has been obtained. Turn off the mains water and the boiler. Close gate valves on tanks if available or drain down the hot and the cold tanks. Once the water has been run off, it is a step by step process of exposing the cartridge and removing it from its housing.

Dismantling the shower control Dismantling the shower control

Dismantling the shower control

Dismantling the shower control

Removing the shroud The thermostatic cartridge

Removing the shroud

The thermostatic cartridge

Removing the cartridge

The photos on this page show a plumber exposing the cartridge and removing the valve. If the installation was done correctly including the tiling not blocking access to the shower block, the cartridge can be removed easily. First turn the shower to the off and the cold setting and note the position of the over heat stop before removing the cartridge. Check the filters on the valve inlets for debris and clean the openings of the inlet pipes.

Removing the fixing screws The old cartridge

Removing the fixing screws

The old cartridge

The cartridge housing The replacement thermostatic cartridge

The cartridge housing

The replacement thermostatic cartridge

Replacing the shower cartridge

Before inserting the new cartridge lubricate the moving parts with silicon grease. When the new cartridge is in the shower block reverse the process starting with the mounting nuts that hold the cartridge in place. When finished check the temperature settings by running the shower. If when operated on the hottest setting the water temperature rises to above 65 degrees centigrade, expose the cartridge and restrict the movement of the temperature control by moving the safety stop.

Replacing the fixing screws New cartridge in place

Replacing the fixing screws

New cartridge in place

Replacing the cartridge housing Job completed

Replacing the cartridge housing

Job completed

Contact

Contact us today by clicking on the above link.