My heater started making a loud noise and stop working. I replaced the actuator.

What is your question?

Before I replaced the blend door actuator my air condition worked fine. Now I have to unplug my actuator in order to have air and it doesn't blow out good air sometimes. So every summer I unplug it and every winter I have to buy a new one an plug it in to have heat. I've replace it several cause some of them kept going out. It's so frustrating that nobody knows the problem. Please help me!!!!!!