Samsung AR09HSFSHWKNCV Service Manual page 129

10-2-30 10-3-18 Smart Install error
1. Checklist :
1) Check the leakage region.(Use leakage detection liquid or soapy water)
2) When leakage region is found from service valve and piping connection flare nut part : After the related measures to check the
refrigerant supplements and operation.
3) If the leakage region is pipe welding part : Weld leakage region after refrigerant gas release.(Brass parts should only apply)
4) If the leakage region is surface area (Heat exchanger or pipe welding region is not) : Replace parts.
5) Check the PBA Relay
- Display of indoor unit : Ensure that the operating pilot lamp has been lighted.
- Ensure that the Relay input voltage of indoor unit PBA is normally.(If the PBA is defective, replace)
2. Troubleshooting procedure
Did stop valve of
the low pressure valve open
perfectly?
YES
Re-connect after 3 seconds,
after separate the power cord.
And then begin cooling operation with minimum
temperature that can establish. (use the remote control)
YES
Among compressor operation, does cold air
come out from the indoor unit?
YES
End
10-36
NO
Open perfectly stop valve.
(Use the 4mm hex wrench)
Connect the manifold gauge to the service
NO
port of low pressure side service valve and
then measure the refrigerant pressure.
YES
Does measurement
pressure include in ±10 extent
of reference pressure?
YES
- Discharge temperature and the indoor
temperature measurements confirm
that the difference is more than 10 .
- Fill up perfectly refrigerant after
re-vacuum.
YES
NO
[Execute the troubleshooting]
Check the refrigerant leaks.
Check the PCB Relay.
YES
Execute the related trouble-
shooting.
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