Why does my AC only work sometimes?
Intermittent cooling is often caused by the components of your vehicle’s AC system freezing up. Typically an iced over evaporator is the culprit. An evaporator covered in ice can’t cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns.
Why is my AC not cooling properly?
If your air conditioner is running, but not lowering temperatures inside, one issue could be a blocked or clogged condenser coil. When operating correctly, the condenser fan draws air into the outdoor unit through the condenser coil to pull heat energy out of your home.
What does it mean when your AC is running but not Cooling Your House?
Your thermostat is switched to ON. If your thermostat switch is set to ON, that means the blower will run constantly—even when your system isn’t cooling your home, which will result in warm air blowing from your vents. How to fix it: Switch your thermostat to AUTO (see image below), so air only blows from your vents when the AC is cooling.
Why is my a / C not keeping up with the heat?
If you’re only now noticing your A/C doesn’t keep up in the heat of the day, it may not be a new problem. Start observing which rooms are hottest, what time of day is it the worse, etc. Doing this will give you and your HVAC professional clues about what’s likely the problem, or problems plural.
What to do if your central air conditioner is not working?
For information on furnace problems, please see Furnace Not Working. If your central air conditioner won’t go on automatically when the thermostat signals the need for cooling: 1 Check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse.
Why does my air conditioner freeze up when I Turn on the AC?
Only two things cause an AC air handler to freeze up: 1) reduced air flow because of dirty filters, coils, or poorly working fans, and 2) low refrigerant level, which a pro must check and, if necessary, recharge. More often than not, the problem comes from reduced air flow.