Air Conditioner Not Cooling
Common Symptoms
AC running but warm air coming from vents
AC blowing room temperature air
House not reaching thermostat setpoint
AC struggling on hot days
Some rooms cool, others don't
Possible Causes
Several factors can contribute to this problem. Understanding the cause helps determine the right solution.
1Dirty air filter restricting airflow
2Low refrigerant from leak
3Dirty condenser coils
4Frozen evaporator coil
5Faulty compressor
6Thermostat issues
7Blocked or leaking ductwork
What You Can Check First
Before calling a technician, try these simple checks that may resolve the issue.
1
Check and replace air filter if dirty
2
Verify thermostat is set to 'cool' and temperature is below current room temp
3
Ensure outdoor unit is running and not blocked by debris
4
Check that all vents are open and unblocked
5
Look for ice on refrigerant lines
When to Call a Professional
Ice visible on indoor or outdoor unit
Refrigerant lines feel warm instead of cold
Outdoor unit not running at all
Hissing or bubbling sounds (refrigerant leak)
Circuit breaker keeps tripping
Experiencing any of these situations?
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