You may have two issues. One are the child locks on? If so then you are going to have to operate the outside door handle to get this to open. Either way, you need to operate the handle to see if the latch is moving. If the latch is moving then the door is just stuck and you need to put your shoulder into the door with the handle pulled.
As for the lock not working then you are probably correct that the actuator is the issue.
So I attached the info from the manual below on how to access the latch and test the actuator. Let's see if the handles (inside and outside) are moving the latch.
Let me know what you find. Thanks
Images (Click to enlarge)
Saturday, March 27th, 2021 AT 7:26 AM