Problem Solver

AC Blowing Warm Air in Lafayette, LA

When the system is running but the air coming out is not cold, the cause ranges from a simple thermostat setting to a refrigerant issue that needs a professional.

Call NILOV for Diagnosis Request Help

Common Causes

The thermostat set to Fan or Heat instead of Cool
A dirty air filter restricting airflow across the coil
Low refrigerant from a leak, which requires professional diagnosis
A frozen evaporator coil
The outdoor condenser unit not running due to an electrical or capacitor issue
The outdoor unit blocked by debris, limiting its ability to release heat

What You Can Safely Check

Confirm the thermostat mode is set to Cool and the temperature is below the current room temperature
Check and replace the air filter if it is dirty
From a safe distance, look at the outdoor unit to see whether the fan is spinning

When to Call NILOV

The outdoor unit is not running at all
You suspect a refrigerant leak
Air stays warm after confirming the thermostat and filter are not the cause

Dealing with this in your home?

Call NILOV. Tell us the symptom, your town, and what your system is doing.

Call (337) 450-8886 Request a Free Quote

Next Pages to Visit

AC Repair AC Not Cooling AC Frozen Coil

FAQ

AC Blowing Warm Air Questions

Why is my AC blowing warm air even though it is running?

It usually means the outdoor unit is not running correctly, the coil is frozen, or refrigerant is low. A thermostat set to the wrong mode is also a common, simple cause worth ruling out first.

Is it safe to check the outdoor unit myself?

A visual check from a safe distance is fine. NILOV does not recommend opening the outdoor unit's electrical panel or handling refrigerant lines yourself.

Could this be a refrigerant leak?

It is possible, and refrigerant issues need a professional diagnosis and repair. Do not attempt to handle refrigerant yourself.