celindion. faucet design. February 21st , 2018.
To disassemble unscrew the setscrew and pull off handle. Though these faucets are washerless, they do have inlet and outlet seals that may leak, or sediment may build up inside the inlets and cause leaks. After removing the escutcheon cap, lift out the cylinder and clean the neoprene seals and cylinder openings. Be sure the faucet is in the "open" position when replacing seals.
It is quite obvious that the touch feature is powered by electricity. Sometimes people ask whether the faucets need to be connected to the mains. They think it might be dangerous. Others mistrust the very idea of electricity and water being together in a faucet. In fact, the touch sensitive faucets are powered by a set of four or six 1.5 V batteries. The voltage reached by such a pack does not exceed 9 volts, which is considered safe voltage even by the strictest regulations. The electricity, however weak, never comes in contact with water. In a typical touch sensitive faucet, water runs inside pipes made from non-conductive materials. So there is no threat whatsoever that could be attributed to the use of electricity in touch sensitive faucets.
Before performing this maintenance you should find out if the reason the faucet is leaking is because it was frozen and parts on the inside may be damaged. frost free hose bibs may freeze during freezing temperatures if a hose is left attached to it or if the hose bib is installed with the slope of the hose bib sloping in toward the house. Both conditions prevent the hose bib from draining when it is shut off and then when freezing temperatures happen the hose bib freezes up and is damaged. This article teaches you how to recognize problems with leaky frost free hose bibs and fix them.
Faucet manufacturers make several types of replacement kits for ball-type faucets; some kits have only the springs and neoprene valve seats, while better kits also have the cam and cam washer.