We can, but it is not a repair. An air conditioner is a sealed system and refrigerant is not consumed in normal operation, so a low charge means it escaped somewhere. Recharge without finding the leak and the same call happens again, usually sooner than you expect and often at a worse moment. Locating the leak is the part that actually fixes the problem.

Running undercharged raises compressor operating temperature and mechanical stress. Sustained operation in that state can eventually cause compressor failure, which is among the most expensive HVAC repairs there is. That is why we would rather find a leak early than recharge a system repeatedly while the most costly component quietly takes the damage.

In sequence. Pressure testing confirms the system is actually low, then we work through the accessible copper line set, the evaporator coil, the condenser coil, and the service valves and connections. Where the leak still is not visible, electronic leak detection locates it. The point of the sequence is that it ends with a specific location rather than a guess.

It depends on what we find. A single leak in accessible copper is usually a straightforward targeted repair. Where corrosion is extensive or there are multiple leak points, replacing the whole line set is more reliable than chasing individual failures — because corroded tubing that has leaked once tends to leak again nearby. System age and refrigerant type factor in too.

Because a system that has leaked has drawn in air and moisture, and moisture inside a refrigerant circuit causes problems of its own. Vacuum evacuation removes it before recharging, then the charge goes in to manufacturer specification and superheat and subcool are verified. Skipping the vacuum step is a shortcut that shows up later.

Yes. EPA regulations require certified handling of refrigerants and prohibit intentional venting to atmosphere, so recovery, repair, and recharge all follow compliant procedures. Our technicians are EPA-certified for refrigerant work. It is worth confirming that with anyone you let near your system.