GuidesRefrigerant
AC Refrigerant Leak in Las Vegas: Low Charge Is a Symptom
Refrigerant is not like gasoline. A sealed air conditioner should not need a seasonal “fill-up.” If the system is low, it is usually leaking. “Just add Freon” without finding the leak is a temporary cool-down that comes back as another no-cool call.
Colton Air Conditioning schedules these calls Monday–Friday, 8am–5pm. We do not publish bait per-pound prices on guides.
What low charge feels like
- Air barely cooler than the room while the outdoor unit runs — AC running but not cooling
- System iced up, then blows warm after a thaw — frozen AC coil
- Longer runtimes and higher bills without a thermostat change
- Hissing at a fitting (not always audible)
Warm air alone is not proof of a leak. Wrong mode, dirty coils, bad capacitors, and airflow problems mimic it — dirty AC coil, thermostat not working.
Why iced readings lie
If the indoor coil or suction line is iced, pressures and temperatures do not represent a normal running system. Thaw with cooling off first. Measure after. Adding refrigerant onto an iced coil is how a wrong charge gets worse.
Leak find, then charge
| Step | Why |
|---|---|
| Confirm low charge with proper gauges / temps after a valid run | Separates leak from airflow and electrical |
| Find the leak (dye, electronic detector, bubbles, nitrogen where appropriate) | Top-off without a find is a repeat call |
| Repair or replace the leaking part when practical | Coil leaks change repair-vs-replace math |
| Evacuate and charge to the correct method for that system | Guessing pounds from a driveway chart is not a procedure |
On older refrigerants that are no longer practical to keep buying, a leaking system often pushes the conversation toward replacement — repair or replace. Age alone still does not decide it.
What not to do
- Do not “top off every spring” as maintenance
- Do not add refrigerant while the coil is frozen
- Do not vent refrigerant to the air
- Do not accept a compressor condemnation with no leak check and no measurements
Related: AC repair Las Vegas, HVAC second opinion.
When to call
Call when cooling is weak, you were told it is “low on Freon,” the system ices repeatedly, or a prior top-off lasted only days or weeks.
Have ready if you can: about how old the system is, whether anyone already added refrigerant, and whether you saw ice.
Hours are Monday–Friday, 8am–5pm.
FAQ
Does low refrigerant always mean a leak?
In a system that was commissioned correctly, yes in practice — something left the sealed system. Rare commissioning mistakes exist; they are still a measured diagnosis.
Can I use a DIY recharge kit?
We do not recommend it. Wrong refrigerant, wrong amount, and sealed-system damage are common outcomes.
Is a refrigerant leak the same as water under the air handler?
No. Water is usually condensate — AC leaking water.
What hours can I reach Colton?
Monday through Friday, 8am to 5pm.
Told you were low on refrigerant, or cooling died after a short top-off? Call Colton Air Conditioning at (702) 738-6976 Monday–Friday, 8am–5pm. Tell us what was already added and whether the coil iced. We will tell you if we can see it.
Colton Air Conditioning · Las Vegas Valley residential HVAC · Monday–Friday 8am–5pm
Call (702) 738-6976 or Book Online. License 0092120. Hours Monday through Friday, 8am to 5pm. Saturday and Sunday are closed.
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