The P. Gagnon & Son Blog

Why Is My A/C Not Cooling My House?

These troubleshoots may solve the problem!

air conditioning service maineWe’ve had a hot summer here in the Seacoast Region, and your home’s air conditioning system has been getting a workout but not getting much of a break as you need it to keep your home cool and comfortable.

But if you’re noticing that your central air conditioning is running, but your home isn’t getting cool, that’s a problem. Before you contact P. Gagnon & Son to request a service call, do some detective work because there may be a simple explanation for the problem that you can solve yourself and save money!

We’ve put together four troubleshoots you can do. Remember, if you’re not sure about anything, don’t hesitate to contact us.

  1. Make sure your thermostat is properly set to “cool” or “air conditioning.” 
  2. Go around your home to see if vents are blocked by furniture, curtains, or other obstructions. 
  3. Head outdoors and inspect your outdoor unit (the condenser) to see if the fan is running. If it isn’t: 
    • Check for a power switch. 
    • Check circuit breakers. 
    • TURN OFF THE POWER, then check for debris inside the condenser  
    • Check the indoor unit. 
    • Make sure all power switches for the air conditioning system are on 
  4. Inspect the air filters and clean or replace clogged ones according to manufacturer’s instructions 

Troubleshooting the a/c didn’t work: Now what?

While examining your air conditioning system indoors and out, you may notice something that suggests to the source of the problem that the troubleshoots couldn’t fix. P. Gagnon & Son offers skilled, experienced HVAC service technicians that can assist you in resolving these difficulties. Get in touch with us to schedule a service visit, and we’ll be there!

Refrigerant leak. If you hear a hissing or bubbling sound near the unit, and ice has built up on your refrigerant line, it’s likely that a refrigerant leak is to blame. If your air conditioning unit is older and uses R-22 refrigerant, it’s time to replace it. R-22 can no longer be produced in or imported to the United States, thus the price for it is already beginning to rise dramatically and will continue to do so.

Ductwork leak. The easiest approach to determine if this is the case is to walk through your house. Are there any rooms that aren’t cooling down while others are? You could also note an increase in your energy bills as a result of the A/C having to work harder to distribute cold air throughout your home because of duct leaks.

You can trust P. Gagnon & Son for expert air conditioning installation and service. Get in touch with us when your home’s A/C needs maintenance or repairs!