Can a dirty filter cause AC not to cool?

Yes! A severely clogged filter restricts airflow, which can cause the evaporator coil to freeze and stop cooling. Check your filter first.

How do I know if my AC needs refrigerant?

Signs include warm air from vents, ice on refrigerant lines, and the AC running constantly. Only a professional can properly check and add refrigerant.

Urgent Issue

Air Conditioner Not Cooling

Your AC is running but not producing cold air or not cooling your home adequately

Call (650) 396-3290 Book Service

Signs You Have This Problem

AC running but blowing warm air

House not reaching set temperature

AC struggling to cool on hot days

Some rooms cool but others don't

AC runs constantly without cooling

What Causes This Problem

Low refrigerant from a leak

Dirty air filter restricting airflow

Frozen evaporator coils

Dirty condenser coils outside

Faulty compressor

Thermostat problems

Ductwork leaks or blockages

What You Can Check First

Before calling for service, try these simple troubleshooting steps:

Check and replace dirty air filter

Verify thermostat is set to cool and temperature is below room temp

Make sure all vents are open and unblocked

Check outdoor unit for debris or blockages

Listen for unusual sounds from indoor or outdoor units

When to Call a Professional

If basic checks don't resolve the issue, call a professional. Refrigerant problems, electrical issues, and compressor problems require expert diagnosis and repair.

Services That Can Help

Air Conditioning Repair

Fast, reliable AC repair services to restore your cooling system

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Air Duct Cleaning

Professional duct cleaning for better air quality

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