The Connexa

AC Not Cooling? Here's What to Do in Pakistan

By The Connexa Editorial Team · Updated January 2026
AC Not Cooling? Here's What to Do in Pakistan

Quick Answer

AC not cooling is usually caused by dirty filters, low gas, or thermostat issues. Quick fixes include cleaning filters, checking thermostat, and ensuring proper airflow. If basic fixes don't work, call a professional AC technician for gas refill or repair.

Common Causes and Solutions

1. Dirty Air Filters

Symptoms:

  • Reduced airflow
  • Weak cooling
  • AC running constantly

Solution:

  1. Turn off AC
  2. Remove filters
  3. Vacuum loose dust
  4. Wash with mild soap
  5. Air dry completely
  6. Reinstall

Prevention:
Clean filters monthly during use.

2. Low Refrigerant (Gas)

Symptoms:

  • Ice on coils
  • Warm air from vents
  • Hissing sounds

Solution:
Call professional technician for gas leak detection and refill.

Cost:
Gas refill costs PKR 1,200-4,000.

3. Thermostat Issues

Symptoms:

  • AC not responding to settings
  • Temperature inconsistency

Solution:

  1. Check thermostat batteries
  2. Verify settings
  3. Clean thermostat
  4. Replace if needed

4. Blocked Airflow

Symptoms:

  • Weak cooling
  • AC running but not cooling

Solution:

  1. Check vents for obstructions
  2. Move furniture away from vents
  3. Open all vents
  4. Check outdoor unit for debris

5. Dirty Coils

Symptoms:

  • Reduced cooling efficiency
  • AC running longer

Solution:
Clean evaporator and condenser coils with coil cleaner.

6. Fan Problems

Symptoms:

  • No air from vents
  • Weak airflow
  • Strange noises

Solution:
Check fan operation. Call technician if fan motor is faulty.

Quick Fixes You Can Try

Fix 1: Clean Filters

Time Required: 15-20 minutes
Difficulty: Easy
Tools Needed: Vacuum, mild soap, water

Fix 2: Check Thermostat

Time Required: 5 minutes
Difficulty: Easy
Tools Needed: None

Fix 3: Clear Airflow Obstructions

Time Required: 10 minutes
Difficulty: Easy
Tools Needed: None

Fix 4: Clean Outdoor Unit

Time Required: 20-30 minutes
Difficulty: Easy
Tools Needed: Brush, water hose

Fix 5: Check Circuit Breaker

Time Required: 5 minutes
Difficulty: Easy
Tools Needed: None

When to Call Professional

Signs You Need Professional Help

Gas Issues
Low gas or gas leak needs professional repair.

Compressor Problems
Compressor failure requires expert diagnosis.

Electrical Issues
Electrical problems need professional attention.

Recurring Problems
Same issue happening repeatedly.

Strange Noises
Unusual sounds indicating mechanical problems.

Cost of Professional Repair

ProblemCost Range (PKR)
Gas Refill1,200 - 4,000
Capacitor Replacement800 - 2,000
Fan Motor Repair2,000 - 5,000
Compressor Repair3,000 - 8,000

Prevention Tips

Regular Maintenance

Monthly Filter Cleaning
Clean or replace filters monthly.

Annual Professional Service
Schedule annual AC maintenance.

Coil Cleaning
Clean coils quarterly.

Usage Tips

Proper Temperature
Set AC to 24-26°C.

Close Doors and Windows
Keep room sealed while AC runs.

Block Sunlight
Use curtains to block direct sunlight.

Reduce Heat Sources
Turn off unnecessary lights.

Get Professional Help

For AC not cooling issues, trust The Connexa technicians.

Find AC Technician →

Frequently Asked Questions

Why is my AC not cooling?

Common causes include dirty filters, low gas, blocked airflow, or thermostat issues. Try basic fixes first.

How do I fix AC not cooling?

Start with cleaning filters, checking thermostat, and clearing airflow obstructions. If no improvement, call technician.

How much does AC repair cost for cooling issues?

Costs vary by problem. Gas refill costs PKR 1,200-4,000. Fan motor repair costs PKR 2,000-5,000.

Can I fix AC not cooling myself?

Basic fixes like filter cleaning can be DIY. Gas and electrical issues need professional help.

How often should I clean AC filters?

Clean filters monthly during use. More frequently in dusty environments.

What temperature should I set AC to?

Set AC to 24-26°C for best comfort and energy efficiency.

How do I know if AC needs gas?

Signs include ice on coils, warm air from vents, and hissing sounds.

When should I call AC technician?

Call if basic fixes don't work, or if you suspect gas leak, electrical issues, or compressor problems.

Frequently Asked Questions

Quick Answer?

AC not cooling is usually caused by dirty filters, low gas, or thermostat issues. Quick fixes include cleaning filters, checking thermostat, and ensuring proper airflow. If basic fixes don't work, call a professional AC technician for gas refill or repair. ---

1. Dirty Air Filters?

Symptoms: Reduced airflow Weak cooling AC running constantly Solution: Turn off AC Remove filters Vacuum loose dust Wash with mild soap Air dry completely Reinstall Prevention: Clean filters monthly during use.

2. Low Refrigerant (Gas)?

Symptoms: Ice on coils Warm air from vents Hissing sounds Solution: Call professional technician for gas leak detection and refill. Cost: Gas refill costs PKR 1,200-4,000.

3. Thermostat Issues?

Symptoms: AC not responding to settings Temperature inconsistency Solution: Check thermostat batteries Verify settings Clean thermostat Replace if needed

4. Blocked Airflow?

Symptoms: Weak cooling AC running but not cooling Solution: Check vents for obstructions Move furniture away from vents Open all vents Check outdoor unit for debris

5. Dirty Coils?

Symptoms: Reduced cooling efficiency AC running longer Solution: Clean evaporator and condenser coils with coil cleaner.

6. Fan Problems?

Symptoms: No air from vents Weak airflow Strange noises Solution: Check fan operation. Call technician if fan motor is faulty. ---

Fix 1: Clean Filters?

Time Required: 15-20 minutes Difficulty: Easy Tools Needed: Vacuum, mild soap, water

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