Why is my AC running but not cooling?

The most common reasons are dirty air filters, incorrect thermostat settings, low refrigerant gas, or blocked outdoor units.

How often should I clean AC filters?

You should clean your AC filters every 15 to 20 days during summer for best performance.

Does setting AC to 18°C cool faster?

No, setting the temperature too low does not cool faster. It only increases electricity consumption. 24°C is ideal.

When should I call an AC technician?

Call a technician if your AC has gas leakage, compressor issues, water leakage, or unusual noises.

Can I clean AC coils myself?

Yes, you can clean lightly using coil cleaner spray, but for deep cleaning it's better to hire a professional.

FIXKARTS BUZZ: AC Not Cooling? 7 Easy Fixes Before Calling a Technician (2026 Guide

You know that moment… you switch on your AC expecting instant relief — and instead, warm air hits your face. That frustration is real. Your mind immediately jumps to: “This is going to cost me money.”

But here’s the truth — in most cases, your AC isn’t broken at all. It just needs a little attention. Let’s go through 7 simple things you can check yourself before calling a technician.

1. Check the Thermostat Settings (It Happens More Than You Think)

It sounds basic, but this is one of the most common mistakes. Sometimes the AC is simply set to Fan mode instead of Cool mode.

Make sure mode is set to Cool
Set temperature between 22°C – 24°C
Check if power cut reset your settings

Tip: Wait 10 minutes after adjusting — cooling takes a little time.

AC Not Cooling? 7 Easy Fixes Before Calling a Technician (2026 Guide

2. Clean the Air Filters (Biggest Reason for Poor Cooling)

If your AC isn’t cooling properly, dirty filters are usually the reason. Dust blocks airflow and forces your AC to work harder.

Open indoor unit
Remove filters
Wash with water and mild soap
Dry completely before reinstalling

Best practice: Clean filters every 15–20 days during summer.

3. Check Power Supply Issues

Sometimes the problem isn’t cooling — it’s power. Low voltage or loose connections can stop the compressor from working properly.

Check plug connection
Inspect stabilizer
Reset circuit breaker if needed

This simple check can save you a service call.

4. Inspect the Outdoor Unit

Your outdoor unit needs proper airflow to release heat. If it’s dirty or blocked, cooling performance drops instantly.

Remove dust and debris
Ensure 2–3 feet open space
Clean gently with water or brush

Important: Don’t touch internal components.

5. Close Doors and Windows Properly

If your room isn’t sealed, your AC is wasting energy. Cool air escapes and warm air keeps entering.

Close doors and windows completely
Use curtains or blinds
Avoid frequent door opening

Small habit — big impact.

6. Check for Refrigerant (Gas) Issues

If your AC runs but doesn’t cool, low gas could be the issue.

Ice formation on pipes
Weak cooling
Hissing sound

Note: This requires a professional technician. Don’t attempt DIY.

7. Clean the Indoor Cooling Coils

Even with clean filters, dust can build up on coils and reduce cooling efficiency.

Use coil cleaner spray
Clean gently with soft brush

If heavily dirty, go for professional servicing.

Bonus Tips for Better Cooling

Use energy saver mode
Don’t set temperature too low (18°C won’t cool faster)
Use ceiling fan for faster cooling
Service AC every 6 months

When Should You Call a Technician?

Compressor not starting
Water leakage
Strange noises
Gas leakage confirmed

Final Thoughts

Most AC problems are simple — not serious. Dirty filters, wrong settings, or airflow issues cause the majority of cooling complaints.

Take 15 minutes and check these fixes. You might save money, time, and unnecessary stress.

Need Assist :- Contact us

Also Read :-Which AC is Best for You? Complete Guide with Haier & Panasonic Self-Cleaning Features