Unscrew the delta faucet handle by hand and use an allen wrench to loosen the set screw that holds the handle body in place.
Delta faucet repair instructions two handle.
Remove the bonnet nut.
Unscrew the stem unit nut with channel locks.
You need to replace the cartridge on only the side that s leaking.
Remove the faucet handle.
And take a picture of the stem unit before you remove it with the channel locks.
Then find the solutions to that area below.
Determine which side is leaking.
My bath sink two handle centerset faucet leaks.
Unscrew the stem bonnet nuts.
Place your hand under the drip from the faucet.
If you do not find the answer you need here please use the technical document search to find maintenance instructions for your specific model.
Identify the area that is leaking.
However it s possible that both sides are leaking and you ll have to replace both cartridges.
Then remove the faucet handle body and set it aside.
The diagram below is a general representation of this faucet type showing common replacement parts.
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If you do not find the answer you need here please use the technical document search to find maintenance instructions for your specific model.
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Delta plastic acrylic handles will have a plastic index button covering a handle screw.
If your two handle faucet is leaking feel the water to determine which side is leaking hot or cold.
Turn the water off to the faucet s supply lines under the sink.
Then find the solutions to that area below.
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If the water is warm the leak is most likely on the hot side of.
Turn the faucet handles on to relieve the remaining water pressure.
Shut off the water.
In the delta faucet customer service center get warranty information register your product find repair parts and instructions or contact a specialist.