Samsung AC052MN4DKH Service Manual
Also see for AC052MN4DKH: Installation manual
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Contents
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Troubleshooting4-44 Samsung Electronics4-3-20 1JQFCMPDLBHFFSSPS &SSPS$PEF&1. Test items1) Check the open state of the outdoor unit service valve.2) Check the connection of the pipe.3) Check the operation of the EEV.4) Check the refrigerant leakage.5) Check the connection of the indoor unit PBA EVA sensor.6) Check the fault in the indoor unit EVA sensor.2. Check procedureYesYesYesIf there occurs E422 error, reset the powerand check in the following order.Check whether the pipe is empty and open allthe service valves on the gas and liquid pipes..Modify the piping and connect immediately andthen empty the pipes and openthe service valves.Check the replacement of the EEV (body/coil)and the refrigerant leaking part.After that, recharge.Check the temperature value through S-NET,etc. and then if there is a fault,replace and reconnect.NoNoNoNoIs outdoor unit service valve opened?Is connection of piping suitable?(Check the disconnection, bent, or cross-connectionwith other sets.)Does operation error ofrefrigerant leakageor EEV appear?Is it defect of indoormachine EVA sensorand connection state? |
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