This is a silly question, but I never really thought about it, and now I am not 100% sure the answer.

We recently had a plumber replace a cartdrige in our moen lever, and now when we pull the leverl and turn it to the right, it turns on the hot, and turn it to the left makes it colder.

When originally had the moen hardware installed, turning to the left would make it hot, and turning to the right would make it cold.

Now I am not sure what the right direction should be for hot and cold water.

Any help for clueless here ?