1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GROHE Plus Single-Lever Washbasin Mixer Tap, Model 23873003. Please read this manual thoroughly before installation and use to ensure proper function and safety. This product is designed for use in bathrooms.
2. Safety Information
- Always turn off the main water supply before beginning any installation or maintenance work.
- Ensure all connections are secure to prevent leaks.
- If you are unsure about any step, consult a qualified plumber.
- Protect against frost. Drain the system if there is a risk of freezing.
- Do not use abrasive cleaners, solvents, or scouring pads on the faucet surface, as these can damage the GROHE StarLight finish.
3. Package Contents
Verify that all components are present before beginning installation:
- GROHE Plus Single-Lever Washbasin Mixer Tap
- Flexible connection hoses
- Push-open drain set 1 1/4 inch
- Mounting hardware
- Care instructions
- Instruction manual (this document)
4. Specifications
| Brand | GROHE |
| Model Name | Grohe Plus |
| Model Number | 23873003 |
| Mounting Type | Single-hole deck mount |
| Finish Type | Chrome (GROHE StarLight surface) |
| Material | Brass body, Ceramic handle |
| Number of Handles | 1 (Lever) |
| Cartridge | GROHE SilkMove 28 mm ceramic cartridge |
| Flow Rate | GROHE EcoJoy 5.7 l/min |
| Special Features | Temperature Limiter, SpeedClean Mousseur, AquaGuide Adjustable Mousseur, Quick Mount System, Swivel Range 90° |
| Item Weight | 1.42 lbs (approx.) |
5. Setup and Installation
Before installation, ensure the main water supply is turned off. This faucet is designed for single-hole deck mounting.
- Prepare the Mounting Surface: Ensure the sink or countertop surface is clean, dry, and flat around the faucet hole. The mounting hole diameter should be approximately 34mm.
- Insert the Faucet: Place the faucet body into the single mounting hole on the sink or countertop.
- Secure the Faucet: From underneath the sink, use the provided quick mount system to firmly secure the faucet. Ensure the faucet is properly aligned before tightening.
- Connect Water Supply Lines: Connect the flexible connection hoses from the faucet to your hot and cold water supply lines. The hoses are typically G 3/8. Ensure connections are hand-tightened, then use a wrench for a final quarter turn, being careful not to overtighten.
- Install Drain Set: Install the push-open drain set (1 1/4 inch) into the sink drain hole according to its separate instructions. Ensure all seals are correctly seated to prevent leaks.
- Check for Leaks: Once all connections are made, slowly turn on the main water supply. Check all connections for any signs of leakage. If leaks occur, tighten the connections slightly.
Figure 1: Technical drawing illustrating the dimensions and installation points of the GROHE Plus Single-Lever Washbasin Mixer Tap. Key dimensions include overall height, spout reach, and mounting hole diameter.
6. Operating Instructions
Your GROHE Plus faucet features a single lever for intuitive control of water flow and temperature.
- Water Flow Control: Lift the lever upwards to increase water flow. Push the lever downwards to decrease flow and turn off the water.
- Temperature Control: Move the lever to the left for hot water and to the right for cold water. The GROHE SilkMove ceramic cartridge ensures smooth and precise temperature adjustment.
- Temperature Limiter: The integrated temperature limiter can be adjusted during installation to prevent scalding, setting a maximum hot water temperature.
- Spout Swivel: The faucet spout has a swivel range of 90 degrees, allowing for flexible use within the washbasin.
- AquaGuide Mousseur: The GROHE AquaGuide allows you to adjust the angle of the water stream from the mousseur for optimal comfort and splash reduction.
Figure 2: The GROHE Plus Single-Lever Washbasin Mixer Tap, showcasing its modern design and single lever control.
7. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your GROHE Plus faucet.
- Cleaning the Surface: Clean the GROHE StarLight chrome surface with a soft cloth and a mild, non-abrasive cleaning agent. Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots. Avoid cleaners containing alcohol, hydrochloric acid, formic acid, acetic acid, or phosphoric acid.
- Cleaning the Mousseur: The SpeedClean Mousseur is designed for easy maintenance. Limescale deposits can be removed by simply wiping the silicone nozzles with your finger. For more stubborn deposits, unscrew the mousseur and soak it in a mild descaling solution.
- Checking Connections: Periodically inspect all water connections for any signs of leaks or corrosion. Tighten connections if necessary, but do not overtighten.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water flow | Clogged mousseur; partially closed stopcock; low water pressure. | Clean the SpeedClean Mousseur. Ensure stopcocks are fully open. Check household water pressure. |
| Water leaks from faucet base | Loose mounting nut; damaged O-rings or seals. | Tighten the mounting nut underneath the sink. If problem persists, contact GROHE customer service for replacement parts. |
| Water leaks from connections | Loose connection hoses; damaged seals at connections. | Ensure all connection hoses are securely tightened. Check and replace seals if damaged. |
| Inconsistent water temperature | Incorrect hot/cold supply connection; issue with water heater. | Verify hot and cold water lines are connected correctly. Consult a plumber if water heater issues are suspected. |
9. Warranty and Support
For detailed warranty information, product registration, or technical support, please visit the official GROHE website or contact GROHE customer service directly. Keep your proof of purchase for warranty claims.
You can find more information and contact details at the GROHE Store on Amazon.