Before calling a technician, go over the following list to avoid an unnecessary service call expense.

1. Know where all of the units in your heating and cooling system are located (see below diagram).

2. Check to make sure that your thermostat is set in the "Cool" ("Heat") position.

3. Check the circuit breakers in the circuit breaker box (or electrical panel), most likely mounted in the garage or the basement. Are they in the "On" position?

4. Ensure that your outdoor air conditioning (condensing unit) is running:

Check the outdoor unit "disconnect switch" to make sure it is in the "On" position The disconnect switch is located near the outdoor unit. (Typically a grey 8" wide x 16" high x 4" deep box mounted on a wall).

5. Ensure that the blower motor in your furnace is running.
(If the thermostat is switched to "Cool", the furnace blower should be running).

6. If the furnace blower motor is not running, check to make sure the "On/Off" switch at the furnace is in "On" position.

7. Be sure that you have changed your filter in the furnace recently:

An extremely blocked filter can cause your outdoor air conditioner unit to shut down due to lack of proper airflow.

Your filter should be changed every month.

If your unit still does not operate as expected, call us at

                 (516)244-5777 or (631)481-1929