If your air conditioner blows air but it's not cold air then you probably need freon in your air conditioner
No, not if it's on a heat setting. Most home thermostats have a "Fan" setting that will blow cold air if the attic is cold.
You need to have your refridgerant recharged
82
You don't.Suction temperature does.Suction line should be cold and sweating.That's what keeps compressor motor cool.Discharge will always be hot.
No it's not ! It uses electricity to blow cooler air into a home - the same effect can be achieved by opening a window !
Your compressor has possibly stopped working. If you are lucky, the serviceman will only have to replace the freon to get it going again.
If you have to ask this question, you should not be doing this job.
70-85/ 350/290
No they can't because cold air kills them. They can live in hot or warm air.
Sounds as though you may have a heat pump and it's operating in heat mode.
You should leave your air conditioner set on 80 degrees when you go away on vacations. I you have a programmable thermostat for your air conditioner set it to lower the temperature to 70 right before you get home.