Samsung AC140KNPDEH - The Others

Troubleshooting
Samsung Electronics 4-23
4-3-16 The others
1. E465 : Compressor over load error
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¤ If a compressor is normal, check the assembly between Heatsink-Inverter PBA. If it is fine, change Inverter PBA.
2. E468 : Current sensor error
t Check EEPROM data.
t Check PCB operates properly.
3. E471 : Oudoor EEPROM error
t Upload EEPROM on Outdoor unit Main PBA.
4. E474 : IPM(IGBT Module) or PFCM Temperature sensor Error
t E500 : IPM is over heated
t Check IPM is well assembled to heatsink
t Check whether inlet port is clogged.
t Change IPM if it is defective one
5. E554 : Gas leak error
t Check refrigerant charge
t Check Indoor EVA sensor
t Check Service valve is open.
t Check the pipes and wires correctly connected.
6. E556 : Capacity miss match between indoor and outdoor
t Check the model name of indoor and outdoor unit and set option code on indoor unit again.
7. Outdoor overload protection control (at the stop of the compressor.) : E404
t Check whether the fan and the motor operate normally.
t Check the operation of EEV.
t Check the temperature sensor of the indoor unit heat Exchanger.
t Check the indoor unit inlet blocking.