What Does Test Run Mean on My Air Conditioner?

"Test Run" Button

• A "Test Run" button is on the front panel or remote control. This button is to be pressed upon installation of the air conditioner to confirm that the AC is set up properly. If the button is pressed during normal operation, the power and timer indicator lights might blink, and the unit will switch to test operation mode. During test operation mode, the unit fails to operate correctly. Push the "Start/Stop" button to shut off the test operation mode.

Remote Control

• Unit manuals refer to a "Test Run" as a series of checks to confirm that the unit is installed correctly. One component of these checks is the remote control. If the unit hasn't been used in awhile, press down on the back cover of the remote control, and slide the cover off. Remove the old batteries from the remote, and install two new ones according to the polarity instructions. Press the "Power" button while you aim the controller at the unit and confirm that it turns on.

Settlement

• The second part of the "Test Run" check is the stability of the unit. Confirm that the unit is firmly installed in the wall or window. Inspect all bolts, wires or nails for durability and security. If any fasteners are weak or not secure, remove them and put new ones in place. The unit shouldn't be shaky or loose within the installation area. A secure unit won't fall out or vibrate.

Evaluation

• The third phase of the "Test Run" steps is to confirm that the unit performs correctly. You can observe the unit's functionality by observing it as it runs for 20 minutes. Turn the unit to "Cool," and feel the difference with your hand between the air going into the system and coming out. The temperature difference between the two should be an obvious leap from room temperature to cold air. If the air is colder coming from the louvers after 20 minutes, the unit has been properly tested and is ready to use.