R-22 vs R-410A vs R-454B: San Diego refrigerant guide
Identify R-22, R-410A, or a low-GWP 2025 refrigerant on the nameplate. EPA phaseout facts, repair versus replace, no invented Freon prices.
Tag · 4 articles
Refrigerant
4 articles tagged Refrigerant. Climate Pros SD refers licensed HVAC companies in San Diego County. We do not install.
Explainers
Troubleshooting
AC hissing noise: causes, costs, and when to call
An AC hissing noise usually means a refrigerant leak. How to tell R-22 from R-410A and what to ask on the quote. Climate Pros SD does not publish a leak menu.
Troubleshooting
AC refrigerant leak: signs, cost to fix, and why a top-off is a scam
Think you have an AC refrigerant leak in San Diego? Signs, why a Freon top-off is a scam, and what to ask on the quote. No invented job menu.
Troubleshooting
AC running but not blowing cold air? Here's what's wrong
Your AC is running but the air feels lukewarm. Here are the five most common causes San Diego techs see, and what you can check before calling.
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