Certainly ... call a qualified AC mechanic.
yes
do it yourself its cheaper
It could need recharged or the damper might not be closed.
Yes.
No, window air conditioners cannot be recharged with refrigerant as they are sealed units and not designed to be refilled. If there is a refrigerant leak, it is recommended to contact a professional for repair.
yes but it depends to the area that you installed window type air condition
The A/C Neetd To Be Recharged. The A/C Needs To Be Recharged
It will definitely cost more money and put the air conditioner under a higher load for a longer time. So yes it will burn out the air conditioner faster, if it is pumping out air that is significantly different (cooler and humidity) than the air coming through the window. The reality is that if a window is open the air conditioned air will go out the window and that air con air costed you time and money.
You have to get it recharged. you have no freeon left which makes the cold air
Window AC units CANNOT be recharged at any reasonable expense. They normally hold about 8-14 onces.
It sounds like you need your A/C recharged. It will continue to "click" on and off as it's sucking the last of the freon out of the system.
If it needs recharged, that is because there is a leak. My truck has not needed recharged in the 12 years I have owned it.