Samsung AE044MXTPEH - GAS Leak Error(E554)

Troubleshooting
88
Samsung Electronics
4-6-9 GAS leak error(E554)
1. Check items
1) Is refrigerant charged?
2) Is the evaporator sensor of indoor unit connected correctly?
2. Check procedure
Does the error occur?
Yes
No
Normal operation
Yes
No
Are the service valves fully opened?
Yes
No
Open the service valves
Is the evaporator sensor of
indoor unit connected correctly?
Yes
No
Connect the sensor’s connector
Yes
No
Charge refrigerant
Is the value of resistance
between each phase(*) for compressor
smaller than 2
Ω?
Exchange the compressor
(*) U↔V, V↔W, W↔U
Is refrigerant charged?
Exchange INVERTER PCB
4-6-9