We replaced the door locking mechanism but still have the error code what needs to be tried?

The f22 error means 2 different problems depending on the model number of the washer, post a new question with your model number I can better assist. But if you do have the model where the f22 is the door lock error and you replaced the door lock and you are still getting that error. First run a diagnostic cycle on the washer, if it fails to complete the cycle or gives you the f22 error the main control will have to be replaced.