HiCustomer Thank you for asking your question on Just Answer. The other experts and I are working on your answer. By the way, it would help us to know:-Could you explain your situation a little more?
Is there an access panel to allow a view of the back of the faucet?Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
As long as you can see that it is threaded on.
Any penetrating oil will aid in the removal.
Let it soak in it overnight,
Tapping it lightly will also help loosen the corrosion and aid in the lubricant's penetration.
Be careful not to use to much force or you could have to tear out the wall to replace the plumbing.
Liquid Wrench is a very good product.
If you don't have that WD40 will work.