I have a delta touch faucet and the blue led light stopped working. The red is still lighting and the touch feature is working properly. How can I fix the blue led light?

Maybe try their Tech 844#...

https://www.deltafaucet.com/sites/delta/files/2019-12/Touch_troubleshooting_guide.pdf

Best to you

That model number is the beauty trim flange and not the actual faucet.

https://www.deltafaucet.com/files/live/sites/delta/files/company/concierge/Touch_troubleshooting_guide.pdf

"Ifthesesolutionsarenotabletoresolvetheissue,pleasecontactourDeltaTech2O ConciergeTeamat1-844-923-5368

IFNOSOLUTIONABOVERESOLVESTHEISSUE,PUTFAUCETINMANUALMODEBYUNPLUGGING THEBATTERYBOXWHILETHEWATERISRUNNINGUNTILRESOLUTIONCANBEACHIEVED"

My recommendation is to reset the LED light wire and battery pack. To do this, disconnect the LED light wire from the solenoid. Disconnect the battery pack and wait a full minute. While you are waiting a full minute, you can check batteries to see if they are in good condition, even try new batteries. Make sure all batteries are in the correct direction and are tightly secured in the battery pack. After a full minute, reconnect the LED light wire into the solenoid and then reconnect the battery pack. Wait another full minute. After the full minute, you can then check your faucet and see if the lights work . If this procedure does not fix your issue, contact Delta Customer Service at (800)345-3358 Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. You may also email them at [email protected].

Check installation manual if there is some indication about some kind of advice for this case. If there is no indication for the user, most probably your Delta Touch20 kitchen faucet is defective. Check your warranty terms about how you can return it to be changed or send it for service, so probably you'll have to uninstall it.

Inside the handle of a Delta kitchen sink faucet is a small setscrew. You need an 1/8th inch allean wrench or Delta faucet tool to lossen the setscrew. Rotat the screw about 3 full turns counterclockwise, this should be emough to remove the hnalde. Under the Delta faucet handle is a white plastic ring with four notches. If you have a Delta faucet tool, you place it in two of the notches and slowly turn the ring clockwise to tighten the Delta ball assemby. This will keep the handle from moving by itself. If you do not have Delta faucet tool, use a pair of needle nose pliers in stead.

Levina, I recommend you call Delta's Customer Service Department and explain about the red light. If the batteries were new when they were installed, they should still be good. I had a problem with our Delta Pilar and when I called, the customer service representative was very helpful and solved the problem while we were talking. Good luck and please post back to let us know what happened.
Carly

STOP!

The unit has a fault on its power board and sustain board.
It turns off because the sensor is preventing some component from bacoming overheated and catching fire or damaging further components. Seel professional repair.

Please rate my help++++Thanks for using FIXYA

you need to stick large screw driver up in the faucet and turn it counter clockwise. this might sound ridiculous but it works.

There are 4 wires going to the touch pad unit which has an LED in it. The unit has 4 pins (or legs) to which the wires must be soldered. As you say, there are two blue wires plus a red and also a black - although as you also correctly observe, only three wires are present (blue, red and black) in the connector at the other end of the loom which plugs into the control module.

The blue simply splits two ways within the loom, and these are earths. The black carries a pulsing voltage to drive the LED, and the red (which should measure a constant 5v on a voltmeter) is an input which senses when a key is touched on the pad.

Use a continuity tester or ohmmeter to establish which of the four pins on the touch unit connects to the CENTRE pin of the touchpad. Solder the RED wire to this pin. (Best to start by putting some heat shrink up the wire as the pins on the touch unit are quite close together and there's not much to stop them touching.)

Again using the continuity tester (or ohmmeter) establish which of the remaining three pins goes to the OUTER ring of the touchpad. To this, solder one of the BLUE wires - it doesn't matter which one. You must however get the wires to the touchpad the correct way around in order for the key to be read.

You're now left with one BLACK and one BLUE wire which drive the LED, and two pins on the unit which have no connections. The LED will only light when you get these the correct way around. You will not do no harm if you connect them the wrong way round - the LED will simply remain unlit.

One you have soldered the BLUE and the BLACK wires in place so the LED is flashing, simply test your work by touching a key on the touchpad. If all is well, the LED will light continuously for a period and it should be possible to start the car.