The truth: If your unit needs more refrigerant, it has a leak.
A Closed Loop System
An air conditioner is a closed-loop system. Refrigerant should stay inside the copper lines forever. If it’s escaping, you’re dealing with a ticking time bomb.
- Wasted Money: You are paying for refrigerant that is literally vanishing into thin air.
- Environmental Harm: Most refrigerants are potent greenhouse gases.
- Compressor Death: Low refrigerant levels cause the compressor to work harder without proper lubrication, eventually "frying" the most expensive part of your unit.
Where Leaks Come From
In home and commercial units, 90% of leaks are due to improper installation. At Airspool, we recommend three critical tests during installation:
- Pressure Test: Verify the loop holds pressure before releasing the refrigerant.
- Vacuum Test: Ensure the system holds a deep vacuum (negative pressure) consistently.
- Bubble Test: Use dish soap and water on flared fittings (SAE 45 connections) to check for tell-tale bubbles once the system is live.
Why Cars are Different
You might have noticed that car AC units do seem to need more frequent recharges. This is due to the extreme heat, constant vibration, and the use of rubber O-rings that eventually dry out and fail. Home mini-splits use flared copper connections that, when done correctly, should never leak.
Don't ignore a low-performing AC. Repairing the leak now will save you from a complete system replacement later.
