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Ask Brian HVAC Guy Your Own Question
Brian HVAC Guy
Brian HVAC Guy, HVAC Technician
Category: HVAC
Satisfied Customers: 947
Experience:  I have been an HVAC/R mechanic/technician for 30+ years.
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My American Standard heating/cooling unit works, the blower

Customer Question

My American Standard heating/cooling unit works, the blower works, new thermostat that works correctly, but it no longer cools my home. Does the unit need Freon?
JA: Thanks. Can you give me any more details about your issue?
Customer: Its only 6 years old, and worked great for the last 10 months - both for cooling and heating.
JA: OK got it. Last thing — HVAC Technicians generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: HVAC
Expert:  Brian HVAC Guy replied 1 year ago.

Hi I'm Brian and I'm here to help!

It's a process to determine if your system is low on refrigerant. There are many factors involved. There are many other things that can mask themselves as a refrigerant issue too. The fact that it cooled fine last season doesn't really lend itself to a refrigerant issue either. Refrigerant leak can't be ruled out either though. If your duct developed some serious leakage, it could look like your system is low on gas or if the evaporator (cooling) or outdoor coil has gotten dirty over the years, it could look like a refrig. problem too. It's important to take some temperature and pressure readings and that will point an experienced tech to the root of the issue. Even a compressor that is getting hard to start can look like a refrig. issue even though the system appears to be running normally. The quickest seat-of-the-pants test is to feel the temperature of the larger of the copper lines right where it goes into the outdoor unit after the system has been running for at least a few minutes. That line should be beer-can cold. If it's warm or too cold, then there's an issue with either airflow or refrigerant.

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Thank you,