The air in our nitro went out a few years ago but no big deal. Went to have it fixed last fall, had a part in the dashboard replaced only to find out that it was the compressor. Can’t afford the compressor right now but when they replaced the piece the heat quit working so we removed the actuator under the steering wheel and had heat. (Thought getting a new one would fix this) bought the new actuator and replaced it only to not have heat again. Everything shows it’s working until it’s plugged together and the actuator isn’t turning....... please help!