How to Check Your AC System

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Now, while the temperatures are still mild, we recommend taking these three simple steps to check your air conditioning system.

Step 1: Check Your Filter (Indoor Unit)

Visually inspect your filter(s)

If you use disposable air filters, you should replace them if:

  • The filter was last replaced three months ago or longer
  • The filter is clogged with dirt and dust, obstructing airflow

You can purchase a new filter at a local retailer, or click here to order them through our partner, Second Nature, and have them shipped directly to your door.

If you have a whole house air cleaner, please follow all manufacturer cleaning recommendations.

Step 2: Check Your Outside Air Conditioning Unit

Ensure your outside unit is unobstructed by vegetation such as leaves, shrubs, etc. Gently remove any debris from around the system.

Step 3: Briefly Turn On Your A/C System

Make sure your A/C system is blowing cool air with these three steps:

1. Adjust the thermostat to the “cool” mode

2. Set the temperature to 60 degrees (this turns the AC system on)

3. Wait 10 minutes, then check to see if:

– Cool air is coming from the vents on each floor of the house

– The outside unit is running

When you’re done, return the thermostat to its previous or original setting.
If your system is not blowing cool air after 10 minutes, please contact a Constellation Home care representative for assistance at 1-888-243-4663.

Prepare for your AC Installation Day.

We’ll make sure your air conditioning installation is seamless and worry-free.


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This page is currently under construction.

Everyone needs to make home improvements from time to time and we are no exception. We are currently upgrading our online service scheduling experience, but you can still schedule service by contacting our Customer Care Center. Call 888.243.HOME to schedule service today.