$100
Not by yourself, and not a window unit at all.
The refrigerant (freon) in any air conditioner should last the life of the unit. If not, you have a leak.
if you had the gauges,the know how,and the epa card to purchase freon.Then sure.
Adding freon to your home AC unit should be done by a professional HVAC technician. It is important to have the proper equipment and training to handle refrigerants safely. Attempting to add freon yourself can be dangerous and may result in damage to your unit or harm to yourself. Contact a licensed HVAC technician to properly add freon to your AC unit.
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.
No easy way of doing this. These units do not come with service valves.
actually this is a pet project of mine to produce a Freon-less A/C unit
Never. A properly operating AC unit will have no leaks, thus never need recharging.
To put freon in an air conditioner, you need to locate the service valve on the unit, connect a charging hose to the valve, and slowly add the freon into the system while monitoring the pressure levels. It is important to follow safety guidelines and regulations when handling freon.
The installer if the unit is still under warranty, which is usually one year after the installation. Otherwise the home owner.
To put freon in a window air conditioner, you need to first locate the service valve on the unit. Then, connect a charging hose to the valve and slowly add the appropriate amount of freon. It's important to follow the manufacturer's instructions and safety guidelines when handling freon.