Moen single lever shower handle hard to push/pull open/close
I have a Moen single lever shower handle that is very hard to push/pull open or close. The fixture is approx. 15 years old. I replaced the plastic handle (it was broken inside) and tried to squirt penetrating oil in the valve which had no effect.
If I take off the plate can I access and clean/replace the existing valve?
I took the 2 screws out but the plate is either sealed or just stuck because of time.
Any suggestions will be greatly appreciated.
Jim B.