Samsung EHS AE050RXYDEG/EU Manual page 190

11. Trouble shooting
Display
E425
E428
E436
E438
E439 Refrigerant Leakage Error (Detect when the system is not operated)
E440 Forbid Heat mode Operation when Outdoor Temperature is over 43 °C
E441
E443
E458
E461
E462
E463
E464
E465
E466
E467
E468
E469
470
E471 [Inverter] OTP Error → Outdoor unit EEPROM Read/Write Error (OTP error)
E474
E475
E483
E484
E485
E488
E500
E507
E554
E563
E590
E899
E900
E901
E902
Installer reference guide / Mono tank integrated type
Explanation
Outdoor Reverse Phase or Missing Phase Detect Error
COMP down by Compression Ratio control Error
Protect for Freezing Burst Control Error
EVI EEV Opening Error
Forbid Cooling Mode when Outdoor Temperature is Low 10 ℃
No startup due to Low pressure
Outdoor unit Fan Error
[Inverter] COMP Operating failure
All currency control COMP Stop Or CT2 Low currency
OLP is overheated
[Inverter] DC peak Error
Compressor V limit Error
[Inverter] DC-Link voltage under/over Error
COMP Revolute Error
[Inverter] Comp Current Sensor Error
DC Link Sensor Error
Outdoor unit EEPROM Read/Write Error
[Inverter] IPM Heat Sink Error
Outdoor unit BLDC Fan Error
H/W DC_link over voltage Error
PFC Overload Error
[Inverter] Input Current Sensor Error (open/short)
AC Input Voltage Sensor Error
IPM Overheat Error for Inverter COMP
Comp Down due to high pressure or High Pressure Switch Open
Gas leak error
INDOOR UNIT Mixed Install Error
[Inverter] Data flash Error
Zone1 Tw Temperature Sensor Short/Open
Zone2 Tw Temperature Sensor Short/Open
Water Inlet Sensor Error (open/short)
Water Outlet Sensor Error (open/short)
Error Source
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Hydro Unit
Hydro Unit
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