According to my research, the batteries won’t need to be replaced for a year or so. Next, check and replace the batteries as no power will not enable the led lights. Faqs Customer Support Delta Faucet Make sure that the water is turned on for your device. Delta touch faucet not working blue light . Likewise, will a delta touch faucet work without. My touch2o® faucet handle or spout does not respond to touch. If the problem persists, check your batteries. What to do if your led indicator is flashing red; To troubleshoot with the hot valve: I replaced the batteries and red light is gone but blue light isn't on and the faucet still won't work. Make sure that the wires are not touching any metal and are connected correctly. Push the reset button to reset your faucet functions. Red light was showing which normally means the batteries are low. If water is dripping from the spout of your tub/shower faucet, the leak could be cause by the hot or cold valv...