AC not cooling even after service? Here are 7 common reasons and how to fix them
AC not cooling even after service? Here are 7 common reasons and how to fix them
If your AC is still not cooling properly even after servicing, the issue may not always be related to basic cleaning. Several factors such as low refrigerant levels, dirty filters, thermostat settings, or electrical faults can affect AC performance.
AC not cooling even after service? Here are 7 common reasons and how to fix them
2/8Image Source : Pixabay
Not all AC issues disappear after routine cleaning. Sometimes, something inside isn’t working right. Let’s dig into seven reasons your AC refuses to cool, plus what you can actually do about them.
3/8Image Source : Pixabay
1. Dirty or Clogged Air Filters: When air filters clog up with dust, the airflow drops. That means your AC has to work overtime, and your room still feels like an oven.
How to fix: Take out the filters and give them a good clean if they are washable. If they are damaged or clogged beyond rescue, swap them for new ones. If you use your AC a lot, make filter cleaning a regular thing—every couple of weeks, if you can.
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4/8Image Source : Pixabay
2. Low refrigerant gas levels: Think of refrigerant gas as your AC’s ‘cooling fuel.’ If there is a leak or your system is running low, the AC just cycles endlessly without ever chilling the room.
How to fix: Call a qualified technician. They’ll check for leaks and top up the refrigerant if needed. Do not just settle for a simple refill: fix the leak, or you will end up with the same problem all over again.
5/8Image Source : Freepik
3. Wrong Thermostat Settings: Sometimes, the AC itself is fine but human error creeps in. The thermostat isn’t set right, or it’s stuck on the wrong mode.
How to fix: Double check your settings: Are you sure it’s on cooling mode? Is the temperature set below the room temperature? Did someone leave it on “fan only?” For most homes, setting it to around 22–24°C does the trick.
6/8Image Source : Pixabay
4. Weak airflow from the indoor unit: Blocked vents or a sluggish indoor fan can wreck airflow, so your room won’t cool evenly.
How to fix: Look for anything blocking the vents (curtains, furniture, toys—you name it). If the fan seems weak, call in a tech and have them check the fan motors.
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7/8Image Source : Pixabay
5. Electrical faults or failing parts: Capacitors, wiring, sensors, and compressors – any of these can fail and mess with cooling.
How to fix: Does the AC keep turning off, make weird noises, or struggle to start? You’ll need a pro to open it up and figure out what’s wrong.
8/8Image Source : Pixabay
6. Room conditions work against cooling: Even a perfectly working AC can lose the battle if the room’s not "AC-friendly". Biggest culprits are the Direct sunlight which is baking the room, windows or doors left open while the machine is on, and trying to cool a giant room with a tiny AC.
How to fix: Close all windows, draw the curtains in the day, and make sure your AC’s size matches your room. Bigger rooms need bigger units.
