Grohe 46989000 Thermostatic Temperature Mixing Cartridge

Summary

GROHE 46989000 SmartControl Shower Temperature Mixing Cartridge

The GROHE 46989000 is a temperature-mixing cartridge for the SmartControl concealed manual shower mixers listed below. It sits inside the mixer behind the temperature control and adjusts the blend of hot and cold water.

This is the manual temperature-mixing cartridge, not a thermostatic cartridge or the separate flow-control cartridge that switches an outlet on and off. Integrated dirt strainers help protect the mixing mechanism and can be cleaned during servicing. This listing is for the cartridge, not a complete shower mixer or trim set.

Technical Details

Confirmed Compatible Models

• GROHE 29144000 SmartControl Concealed Mixer with One Valve - round trim
• GROHE 29144000 GEN1 SmartControl Concealed Mixer with One Valve - 2016 to 2018 version with round trim
• GROHE 29145000 SmartControl Concealed Mixer with 2 Valves - round trim
• GROHE 29146000 SmartControl Concealed Mixer with 3 Valves - round trim
• GROHE 29147000 SmartControl Concealed Mixer with One Valve - square trim
• GROHE 29147000 GEN1 SmartControl Concealed Mixer with One Valve - 2016 to 2018 version with square trim
• GROHE 29148000 SmartControl Concealed Mixer with 2 Valves - square trim
• GROHE 29149000 SmartControl Concealed Mixer with 3 Valves - square trim

Shower Sets Using These Mixers

The following shower sets use 46989000 within their supplied SmartControl mixer. Check that the original mixer remains fitted before ordering.

• GROHE 34709000 SmartControl Perfect Shower Set - through its supplied GROHE 29146000 SmartControl Concealed Mixer
• GROHE 34712000 SmartControl Perfect Shower Set - through its supplied GROHE 29149000 SmartControl Concealed Mixer
• GROHE 34873000 SmartControl Concealed Shower System with Rainshower SmartActive 310 Cube - through its supplied GROHE 29149000 SmartControl Concealed Mixer

Before You Order

Confirm the exact mixer model and the existing cartridge reference. SmartControl manual mixers and Grohtherm SmartControl thermostatic mixers use different temperature-control components. The number of control buttons, trim shape or a shared concealed installation box is not sufficient to identify the correct cartridge.

Select the cartridge from the exact mixer fitted to the box, not from the SmartBox reference alone.

Servicing and Fault Checks

Isolate both water supplies before dismantling the mixer. Follow the service procedure for the exact model, rinse the dirt strainers and inspect the seals before reassembly. Use the correct tool on the fixing nut, observe the tightening limit and check for leaks and correct temperature adjustment after refitting.

If water continues to drip from a shower outlet after it has been switched off, check the separate outlet flow-control cartridge before assuming that the temperature-mixing cartridge is at fault. Temperature selection and outlet shut-off are separate functions in these mixers.

Related Spares You May Need

• GROHE 48359000 SmartControl Flow Control Cartridge - the separate outlet on/off and water-volume control cartridge used in the listed mixer assemblies
• GROHE 48361000 Push Button - a separate component of the SmartControl outlet-control assembly
• GROHE 47753000 Non-Return Valve - for the earlier 2016 to 2018 one-valve assemblies listed above; check the existing non-return-valve code because later versions use a different part
• TACSIL 3g Cartridge Silicone Grease - optional seal and O-ring lubricant, Part Number TAC86; use only where lubrication is required by the fitting procedure

If the mixer or cartridge cannot be identified, contact us for help identifying the part with photographs of the shower controls, existing cartridge and any visible reference codes.