Samsung AC009BNLDCH Service Manual page 240

Troubleshooting
Test operation mode and check mode (Cont.)
■ Auto check(Installation commissioning mode)
• This is a self-diagnosis function to determine the installation status and product integrity in the initial installa-
tion. (This model requires the Auto check to be implemented in the installation step before its normal operation
is initiated.)
• Procedures of Auto check
1 Check the product installation status.
– Check the power supply, communication cables, service valve openings, and quantity of additional
refrigerant.
– In the initial power supply after installation, the warning of non-fulfilment of Auto check (
indicated on the outdoor unit and the system will not function properly.
2 Enter the mode of Auto check.
– Press the K2 button 7 times consecutively.
– During the Auto check, the display will show "
30 minutes for completion.
3 The mode of Auto check will then be completed.
– Successful Auto check: After checking the blinking that indicates installation completion on the display
( ), press the K1 or K2 button to turn the status to the standby mode for normal operation.
– Failure of Auto check: An error code blinks on the display. Resolve the error by referring to the details on
the Troubleshooting page about how to troubleshoot for each error code, and then perform the Auto check
again.
• If you intend to install more refrigerant piping prior to entering the mode of Auto check, make sure that the refrigerant to
be added meets the related requirements. In this process, it is possible to test the cooling test mode (K2 switch: once) and
heating test mode (K1 switch: once).
(※ AC***BXSCCC models are cooling-only models and do not support heating test mode.)
• You may stop the mode of test operation for installation by pressing the K3 switch during the test operation.
(After it stops,
• During the Auto check, it is possible to refer to the system status by pressing the K4 switch.
• In the case that there is an error during the Auto check, the Auto check will stop. In this case, take a measure for
the error and then try the test operation again.
• If the test operation is not completed properly, the product will not function in the intended way.
(no implementation of Auto check) will be displayed. Be sure to solve the trouble and complete the test
operation for installation properly.
• indicates, not that the unit is out of order, but that the Auto check has yet to be implemented as an essential
step of installation.
• If you have completed the Auto check function normally once(
- Successful Auto check: After checking the blinking that indicates installation completion on the display
( )
- Failure of Auto check: An error code blinks on the display. Resolve the error by referring to the details on the
Troubleshooting page about how to troubleshoot for each error code, and then perform the Auto check again.
4-46
(the warning of incomplete Auto check) will be displayed)
", " " BLANK" "BLANK" and it will take about 10 to
) and run Auto check again,
) will be
Samsung Electronics