•••• Once abnormality has been detected during operation, theunit will immediately stop its operation. (Timer LED blinks.)•••• Although timer LED goes off when power supply is turnedoff, if the unit is operated under a breakdown condition, theLED will light up again.•••• In operation after breakdown repair, error code is notdisplayed. The last error code (abnormality) will be saved inIC memory.•••• Timer LED Blinking in Abnormal Operation:1. Automatically stops the operation.2. Timer LED on display of the indoor unit blinks.3. The LED will be off if the unit is turned off or the ErrorRESET button on the remote controller is pressed.•••• To display memorized error (Protective operation)status:1. Turn the unit on.2. Press the CHECK button on the remote controller forcontinuously 5 seconds or more with a pointed object toappear “--” on the display.3. Press the “TIMER” or button on the remotecontroller to appear “H00” on the display. Signal istransmitted to the main unit.4. Press the “TIMER” button (When the buttonis pressed, the display goes back.) repeatedly andslowly until Beeps sound (about 5 secondsintermittently) is heard from main unit.5. Then, displayed error code matches to the error codesaved in unit memory. The power LED on the main unitalso lights up.Mote: When the CHECK button is pressedcontinuously for 5 seconds again, or when nooperation continues for 30 seconds, or when theRESET button on remote controller is pressed witha pointed object, the display is cancelled.•••• To clear memorized error (Protective operation) statusafter repair:1. Press the AUTO button in main unit continuously for 5seconds or more and release it. (Test run / Pump downoperation: Beep sound)2. Press the CHECK button on remote controller for about1 second with a pointed object to transmit signal to mainunit. A beep sound is heard from main unit and the datais cleared.•••• Temporary Operation (Depending on breakdownstatus)1. Press the ON/OFF button after selecting Cooling orHeating operation. (Receiving Beep sound is heard andthe TIMER LED blinks.)2. The unit can temporarily be used until repaired.Error Code Operation Temporary itemsH23 Cooling Emergency Operationwith limited powerH27, H28 Cooling, Heating10 Self Diagnosis Display10.1. Breakdown Self Diagnosis Function (Three Digits Alphanumeric Code)88CS-ME7DKEG CS-ME10DD3EG / CS-ME10DTEG CS-E15DB4EW