Troubleshooting a Touchless Faucet

Updated on October 1, 2016

Touchless faucets utilize automated faucet controls to provide hands-free activation. Besides their sleek and contemporary style, touchless faucets can reduce water consumption by people who tend to leave the faucet running needlessly between water-related tasks.

In addition, automated water control is a more sanitary option than touching the faucet handles with dirt-and-germ-laden hands. However, these water-saving, convenient and grime-reduction instruments are also susceptible to problems that do not occur with regular faucets. Below are four common touchless faucet issues.

No Flashing Light or Water

If the LED sensor light does not flash and there is no water coming out of the faucet, it is possible that the batteries were not installed properly. Remove the battery box cover and examine the batteries to see if they were inserted in the direction specified in the instructions. If so, firmly push the batteries down to ensure they have been fully inserted and are touching the contacts. Finally, check the valve control to determine if the connection from the battery box is secure.

Flashing Light But No Water

If the LED sensor does flash but there is no water coming from the faucet, the batteries may need replacing. On some touchless faucet models, the light will flash 5 times every 4 seconds to indicate that the batteries are low, so replacing them is the first step. However, a flashing light may also indicate that there is a short in the sensor or the sensor wire. Cautiously remove the black sensor wire from the washer and touch it with your finger. This should produce a water flow, which ceases when you stop touching the wire. If so, the problem is with the cover plate installation and the spout. If not, there is either a grounding issue or the sensor wire may be broken.

Slow Water Flow

If the faucet has a slow water flow, the water supply valve may not be fully open, and if so, merely adjust the valve. It is possible that the aerator is clogged, and removing and cleaning it will restore a normal water flow. The solenoid filter may also be clogged. However, if removing and cleaning it does not solve the problem, you may need a replacement solenoid filter kit.

Leaky Faucet

If water drips from the faucet when the activation cycle is over, the dial may need adjusting or there may be dirt or some other valve obstruction. Turn the dial to the auto position and then activate the water several times until the leaks stop.

However, if this does not work, turn off the water to the valves, and remove the aerator from the bottom of the faucet; then remove the dirt filter and clean it. Reinsert the filter, but leave the aerator off while you turn water back on. Activate the sensor several times to flush out any remaining dirt, and when the water flows cleanly, reattach the aerator.


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      Kyle 5 months ago

      If there is a short do I need a new faucet or can I did it