Troubleshooting
4-32 Samsung Electronics
Gas leakage error (Error Code : E554) (Cont.)
No
Install again by following the standard specifications.
Is indoor and
outdoor unit wiring/piping
installed properly?
Open the valve.
Yes
Reconnect the sensor connector.
No
No
Is the indoor EVA
sensor correctly connected?
Yes
Charge the refrigerant.
No
Is refrigerant charged?
Replace the inverter PCB.
Yes
Yes
Yes
Is service valve fully opened?
Continue
Bad installation
Piping
Wiring
① ② ③
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