1. Introducció
This manual provides essential information for the installation, operation, and maintenance of your GROHE Grohtherm SmartControl Thermostat (Model 29121000). Please read these instructions carefully before installation and use to ensure proper function and safety. Retain this manual for future reference.
2. Informació de seguretat
- Instal·lació professional: Installation should be performed by a qualified professional in accordance with local plumbing and building codes.
- Subministrament d'aigua: Ensure the main water supply is turned off before commencing any installation or maintenance work.
- Configuració de temperatura: The thermostat features GROHE SafeStop Plus technology for scalding protection at 38°C and 43°C. Always verify water temperature before use, especially for children or individuals with sensitive skin.
- Compatibilitat del sistema: This product must be installed in combination with the GROHE Rapido SmartBox (35600000). Failure to do so will prevent proper operation.
3. Característiques del producte
The GROHE Grohtherm SmartControl Thermostat offers advanced functionality for a personalized showering experience:
- SmartControl Technology: Push to start and twist to adjust water volume for individual spray sources.
- Control termostàtic: Maintains a constant water temperature, preventing sudden changes.
- Tecnologia anti-escaldats: GROHE SafeStop Plus provides protection at 38°C and 43°C.
- Estalvi d'aigua: Features EcoJoy technology to reduce water consumption by up to 50%.
- Acabat durador: Scratch-resistant and easy to maintain GROHE StarLight chrome finish.

Image: An annotated diagram of the Grohtherm SmartControl thermostat, pointing out key features such as SmartControl (push-turn operation), EcoJoy (water saving), SafeStop Plus (scalding protection), and the temperature setting dial.
4. Configuració i instal·lació
The GROHE Grohtherm SmartControl Thermostat is designed for concealed installation. It requires the separate purchase and installation of the GROHE Rapido SmartBox (Model 35600000).
4.1 Components necessaris
- GROHE Grohtherm SmartControl Thermostat (Model 29121000)
- GROHE Rapido SmartBox (Model 35600000) - Es ven per separat

Image: A visual representation of the Grohtherm SmartControl trim set alongside the required GROHE Rapido SmartBox, emphasizing that the SmartBox (model 35600000) is a necessary component for installation.
4.2 Finalització de la instal·lacióview
The installation process involves mounting the Rapido SmartBox within the wall, connecting the water supply lines, and then attaching the Grohtherm SmartControl trim set. Due to the concealed nature and plumbing connections, professional installation is strongly recommended.

Image: An exploded diagram showing all individual components of the Grohtherm SmartControl system, including the concealed installation box, the chrome trim plate, control knobs, and various seals and fasteners.
5. Instruccions de funcionament
The Grohtherm SmartControl Thermostat provides intuitive control over your shower or bath functions.
5.1 Water Outlet Selection and Volume Control
- Select Outlet: Press one of the three push-button controls to activate a specific water outlet (e.g., hand shower, head shower, bath filler).
- Ajustar el volum: Twist the selected push-button control clockwise to increase water volume and counter-clockwise to decrease it.
- Combine Outlets: Multiple outlets can be activated simultaneously by pressing their respective buttons.

Image: A close-up of a hand interacting with the Grohtherm SmartControl, demonstrating the action of pressing one of the three circular buttons to activate a water flow.
5.2 Ajust de temperatura
- Temperatura establerta: Use the central rotary dial to adjust the water temperature. Turn clockwise for hotter water and counter-clockwise for cooler water.
- SafeStop Override: To exceed the 38°C safety stop, press the small button on the temperature dial while turning. The 43°C safety stop can also be overridden similarly.

Image: A complete shower installation showcasing the Grohtherm SmartControl thermostat on a dark tiled wall, with a large rain shower head above and a hand shower on the side, illustrating the system in use.
6. Manteniment
To maintain the appearance and functionality of your GROHE Grohtherm SmartControl Thermostat, follow these simple cleaning guidelines:
- Neteja regular: Clean the chrome surfaces regularly with a soft cloth and a mild, non-abrasive cleaning agent.
- Eviteu productes químics durs: Do not use abrasive cleaners, scouring pads, or cleaning agents containing alcohol, ammonia, or phosphoric acid, as these can damage the finish.
- Esbandida bé: After cleaning, rinse the surfaces thoroughly with clean water and dry with a soft cloth to prevent water spots.
7. Solució De Problemes
If you encounter issues with your Grohtherm SmartControl Thermostat, consider the following common solutions:
- Sense flux d'aigua: Ensure the main water supply is open. Check if the SmartControl buttons are fully pressed and twisted to the desired volume.
- Temperatura incorrecta: Verify the temperature dial setting. If the water is too hot or cold, and the dial is at the correct setting, there might be an issue with the hot/cold water supply or the thermostatic cartridge.
- Baixa pressió d'aigua: Check for blockages in the shower heads or hand showers. Ensure the water supply valves are fully open.
- Fuga: If leaks occur around the trim plate, ensure all connections are secure and seals are properly seated. If the leak persists, professional assistance may be required.
For persistent issues or complex problems, it is recommended to contact a qualified plumber or GROHE customer support.
8. Especificacions
| Especificació | Detall |
|---|---|
| Marca | GROHE |
| Número de model | 29121000 |
| Material | Metall |
| Acabat exterior | Chrome |
| Dimensions de l'article (L x A x A) | 7.09 x 13.58 x 5.79 polzades |
| Pes de l'article | 1.76 lliures |
| Nombre de Ports | 3 |
| Estil | 3 Shut-Off Valves |
| Forma | Ronda |
| Voltage | 230 Volts (for certain regions/installations) |
| Required SmartBox | GROHE Rapido SmartBox (35600000) |
9. Garantia i Suport
Your GROHE Grohtherm SmartControl Thermostat is backed by a comprehensive warranty.
9.1 Garantia del fabricant
Aquest producte ve amb un 5 anys de garantia del fabricantSi us plau, conserveu el comprovant de compra per a reclamacions de garantia. La garantia cobreix defectes de materials i fabricació en condicions d'ús i manteniment normals.

Image: The official GROHE 5 Year Guarantee logo, signifying the product's warranty period.
9.2 Atenció al client
For technical assistance, warranty inquiries, or to locate authorized service centers, please visit the official GROHE website or contact their customer service department. Contact information can typically be found on the GROHE weblloc o embalatge del producte.
També podeu visitar el GROHE Store on Amazon per obtenir més informació sobre el producte i recursos d'assistència.






