If test run after installation of the product is not normally performed, No message may be displayed, or the
product is turned off soon after installation.
Carry out test running of the product.
Products in which test running was not performed do not operate normally.
Product symptoms when a test run is not performed
1. An error code occurs in the product. [No display]
2. 3 LEDs blink continuously at the same time.
3. The louver opens and then closes after a while, or it does not work.
→ Test run of the product might not normally performed if the same symptom persists immediately after
installation.
You may ask test run to installation technician, or you can perform test run by yourself.
Checking the display for a “test run not performed” error
➔ Failure of test run displayed on LED lamps, Failure of test run displayed on LED lamps [3 LED lamps turned on simultaneously]
Try this
Test running
➔ Test running of LED type
1. Open the louver of the indoor unit.
2. Keep pressing the forced mode switch on the right of the product for approximately 3 to 6 seconds.
Test run starts once you opt out from the switch when ‘ringing’ sounds once from the product.
3. “Lo” is displayed for approximately 3 minutes during test run, and progress ratio of the required test
run is displayed in numbers between 1 and 99 for approximately 4 minutes.
“EN” is immediately displayed, and the selected mode is automatically executed for approximately 10
minutes.
Wait until the test running is completed.
Approximately 0 to 3 minutes [required operation]
Approximately 4 minutes [required operation]
Approximately 10 minutes [optional operation]
➔ Test running of LED lamp type
1. Hold the handles on the left and the right on the front of the indoor unit, and lift up the front cover to open it.
2. Keep pressing the forced mode switch on the right of the product for approximately 3 to 6 seconds.
Test run starts once you opt out from the switch when ‘ringing’ sounds once from the product.
3. LED lamps ‘Power,’ ‘Outdoor Unit,’ and ‘Reservation’ light in the order, and required test run is
performed for approximately 7 minutes.
Then, LED lamps ‘Power’ and ‘Outdoor Unit’ light simultaneously, and optional operation is automatically
executed for approximately 10 minutes.
Wait until the test running is completed.
Approximately 0 to 7 minutes [required operation]
Approximately 10 minutes [optional operation]
➔ Test running using the remote control
1. Press the power button on the remote control.
When the power is normally supplied, ‘ding’ sounds.
2. Press ‘Reservation/Cancellation’ button on the remote control of the wall-mounted air-conditioner 3 times within 5 seconds.
3. Test running will be executed according to the LED type and LED lamp type products.
Do not press the forced operation switch or a remote control button during test running.
The product does not operate normally if it is terminated before completing the required operation.
If you press the button, the test run may be stopped before completion.
In case of check codes CH 05, 38, 53, 66, 90, and 91
If any of the check codes is displayed, have the installation technical check the products for erroneous
wiring of power cables, or status of refrigerant during installation of the product.
It is recommended that you check the product status after having an installation technician check the
installation status first.
Select the desired date and time to apply for service.
This guide was created for all models, so the images or content may be different from your product.
