Sensor taps, also known as touchless taps, have become increasingly popular in both public spaces and homes for their convenience and hygiene benefits. However, like any technology, they can experience issues. A common problem is when the sensor tap stops working altogether. If you've ever waved your hands frantically under a tap with no water forthcoming, you know exactly how frustrating this can be. Let’s explore why this happens, how you can potentially fix it, and when it might be time to call in a professional.
Understanding Sensor Taps
To tackle issues with sensor taps, it's crucial to understand how they work. These taps use infrared sensors to detect hand movement near the tap's spout. When the sensor detects hands, it activates a valve that allows water to flow. The tap turns off when it no longer detects hand movement. This process involves several components including the sensor, solenoid valve, power source, and sometimes a mixing valve for temperature control.
Common Causes of Sensor Tap Failure
One of the principal reasons a sensor tap stops functioning is power supply issues. Sensor taps are typically powered by batteries or an AC power source. If the batteries are depleted or the power connection is disrupted, the tap will not operate.
Another frequent issue is with the sensor itself. Deposits of dirt or soap on the sensor can block its infrared signal, meaning it can't detect hand movement correctly. Calibration issues can also prevent the sensor from functioning properly.
The solenoid valve, responsible for opening and closing to allow water flow, can also fail. This might be due to sediment build-up, wear and tear, or electrical faults.
Preliminary Checks
- Check the Power Source: Ensure that the batteries haven’t run out or, if it’s connected to an AC power source, check that there are no issues with the supply. For battery-operated models, simply replacing the batteries can resolve the issue.
- Clean the Sensor: Use a soft, damp cloth to gently wipe the sensor lens. Avoid using harsh cleaners which might damage the surface.
- Inspect for Visible Blockages: Look around the tap spout and the sensor area for any visible signs of dirt accumulation or obstruction.
Troubleshooting Steps
- Recalibrate the Sensor: Refer to the manufacturer’s instructions to recalibrate the sensor. Issues with the tap not functioning correctly can often be solved with recalibration.
- Examine the Solenoid Valve: If comfortable with basic DIY, check the solenoid valve. Turn off the water supply before you start. If there's build-up, carefully clean the valve with water and a soft brush.
When to Call a Professional
While some problems with sensor taps are simple to fix, others require professional attention. If you’ve conducted the basic checks and troubleshooting above without success, it’s time to call a professional. Electrical issues within the sensor tap, complex problems within the solenoid valve, or re-wiring tasks are best handled by a trained plumber or technician.
Preventative Measures for Long-Term Maintenance
- Regular Cleaning: Clean the sensor and tap regularly to prevent build-up that might interfere with the tap’s functionality.
- Regular Battery Replacement: If your tap is battery-operated, set a regular schedule for battery replacement to avoid surprises.
- Professional Inspection: Consider having your touchless taps inspected by a professional once a year. They can check for and resolve subtle issues before they lead to tap failure.
Conclusion
In conclusion, dealing with a non-functioning sensor tap can be a nuisance, but with basic troubleshooting skills, many of the common issues can be resolved by yourself. Remember to check the power sources, keep the sensor clean, and tackle straightforward fixes like battery replacement or basic cleaning of the solenoid valve. For more complex issues, or if you find the tap still isn't working after your attempts to fix it, don't hesitate to call in a professional. Regular preventative maintenance ensures your sensor taps operate effectively and continue to provide hygienic and convenient service.
Practical Action Step
For your immediate action, start by checking the battery life or power supply of your sensor tap, and give the sensor area a good clean. This could quickly restore your tap’s functionality and save you time and effort.
