blue
No
$100
29 dollars for refill
If your air conditioner blows air but it's not cold air then you probably need freon in your air conditioner
There are EPA guidelines that must be followed whenever you deal with refrigerant. If you are not EPA certified, you should not be dealing with checking the charge of your unit. Having said that, here is the answer to your question The hose colors are typically: Blue for suction(low side) Red for liquid(high side) Yellow for refrigerant tank
Yes you can if you have the tool, knowledge, and of course the freon. Youtube has instructional videos to help you.
Actually no technical skills needed to check the Freon level. Home central air conditioners have a Freon scale on it. One just need to read the scale and determine whether the level of Freon is sufficient.
Depends on the size of the unit and when it was built. Modern A/C units contain no Freon (R12). It was banned in 1996. Call a home A/C professional.
5.1 Lbs
after twelve thousand years, so don't worry
No easy way of doing this. These units do not come with service valves.
The answer should seem obvious... you have a leak. It could be anywhere in the system, which is unfortunate for you. You'll probably need a tech to come and do a leak test on your system.