AC Repair Guide

AC Not Cooling? 7 Common Causes & Fixes (Aurangabad Guide)

๐Ÿ“… Updated Sep 22, 2026 โฑ 6 min read โœ๏ธ SR Enterprises

If your split or window AC is running but the room still feels warm, you're not alone โ€” this is the single most common complaint we get across Aurangabad and Chhatrapati Sambhajinagar, especially as the unit ages past 2-3 years. Below are the 7 most common causes, in the order we actually find them on-site, plus what you can check yourself before calling a technician.

1Low Refrigerant (Gas Leak)

This is the #1 reason for weak or no cooling. AC gas doesn't get "used up" during normal operation โ€” if the level is low, there's a leak somewhere in the copper piping or coil. You'll usually notice ice forming on the indoor unit's pipes alongside warm airflow.

Fix: A technician needs to find the leak point, seal it, vacuum the line, and refill with the correct refrigerant (R22, R32, or R410A depending on your model). See our AC gas refilling service for pricing and process.

2Dirty Air Filter or Coils

Dust-clogged filters restrict airflow over the cooling coil, so the air coming out feels weak even though the AC is technically "cooling." This is the easiest cause to check yourself.

Fix: Remove the front panel and check the filter โ€” if it's visibly grey/dusty, wash it and let it dry completely before reinstalling. If cooling doesn't improve, the internal coil likely needs a deep clean.

3Blocked or Dirty Outdoor Unit

The outdoor condenser needs open airflow on all sides to release heat. In Aurangabad, dust accumulation and units installed too close to a wall are common culprits, especially after summer.

Fix: Clear any leaves, dust buildup, or obstructions around the outdoor unit. If the fins look clogged, this needs a professional jet-wash โ€” part of our AC servicing.

4Faulty Compressor

The compressor is the heart of the cooling cycle. If the outdoor fan spins but you don't hear the compressor's characteristic hum, or it clicks and shuts off, cooling will fail even though the AC "turns on" normally.

Fix: This is not a DIY fix โ€” a compressor issue needs proper diagnosis (it could be the compressor itself, a start capacitor, or an overload relay). Continuing to run it in this state can cause permanent damage.

5Thermostat or Sensor Issues

Sometimes the AC isn't broken at all โ€” the thermostat sensor is misreading room temperature, or the mode got accidentally switched to Fan or Dry instead of Cool.

Fix: Double-check the mode setting and set temperature. If the display seems accurate but cooling still doesn't match, the temperature sensor near the evaporator coil may need replacement.

6Wrong AC Size for the Room

An undersized AC (say, a 1-ton unit in a large hall) will run constantly without ever bringing the room to temperature โ€” this often gets mistaken for a "fault" when it's actually a capacity mismatch from installation.

Fix: If this sounds like your situation, a technician can confirm correct tonnage for your room size during a service visit, and advise whether it's worth replacing or supplementing.

7Electrical Faults (Capacitor, Wiring)

A weak or failing capacitor can cause the compressor or fan motor to run inefficiently โ€” you might notice the AC struggling to start, or cooling that gradually gets worse over days or weeks.

Fix: Capacitor replacement is inexpensive and quick for a trained technician, but requires safely discharging stored electrical charge first โ€” not a DIY job.

โš ๏ธ Don't ignore ice buildup on the indoor unit. It's tempting to keep running the AC hoping it "fixes itself," but running a unit with a refrigerant leak or blocked airflow for too long can damage the compressor โ€” turning a โ‚น500 gas top-up into a โ‚น5,000+ compressor repair.

Still not cooling after checking these?

SR Enterprises offers same-day AC diagnosis across Aurangabad & Chhatrapati Sambhajinagar โ€” genuine parts, 90-day warranty, upfront pricing before any work starts.

Frequently Asked Questions

Why is my AC running but not cooling the room?

The most common reason is low refrigerant (gas) from a slow leak, followed by a dirty air filter or blocked outdoor condenser unit restricting airflow. A technician can pinpoint the exact cause with a pressure and airflow check.

Can I fix an AC gas leak myself?

No. AC gas refilling requires leak detection, vacuuming the line, and precise refrigerant charging with specialized equipment. Attempting it without training can damage the compressor. Call a certified technician.

How much does AC gas refilling cost in Aurangabad?

Cost depends on refrigerant type (R22, R32, R410A) and how much gas the unit needs, which varies by tonnage and leak severity. SR Enterprises provides an exact quote after an on-site inspection, with no hidden charges.

Do you provide AC not cooling repair in Chhatrapati Sambhajinagar?

Yes, SR Enterprises provides same-day AC cooling diagnosis and repair across Chhatrapati Sambhajinagar (Aurangabad) including Cidco, Garkheda, Waluj, Satara and Mukundwadi. Call +91 97628 15581.