Samsung AVMKH020EA4 Service Manual page 228

11-5-4 EEV defect / Pipe clogging
Phenomenon
• T-evap in, T-evap out, T-air in Maintain the
same temperature.
• There is a large difference with the room
temperature of the other indoor unit.
Samsung Electronics
• Check whether EEV connecter is departed.
• Check the open/close of EEV through the reset of indoor unit power.
• - Detected a noise "tick-, tick-" at the EEV when power reset.
• - If not detected a noise, it is judged a coil breakaway or defect.
• - If a noise "tick-, tick-" is detected, re-operate the indoor unit more
than an hour to check the change of the temperature of indoor unit
inlet/outlet.
• If there is no any change for an hour operation, replace the EEV
or check the pipe clogging.
Check method
Troubleshooting
11-42