5715.3. Breakdown Self Diagnosis Function15.3.1. Self Diagnosis Function (Three Digits Alphanumeric Code)• Once abnormality has occurred during operation, the unitwill stop its operation, and Timer LEDs blink.• 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, the Timer LED will nomore blink. The last error code (abnormality) will be stored inIC memory.• To make a diagnosis1. Timer LED start to blink and the unit automaticallystops the operation.2. Press the CHECK button on the remote controllercontinuously for 5 seconds.3. “- -” will be displayed on the remote controller display.Note: Display only for “- -”. (No transmitting signal, noreceiving sound and no Power LED blinking.)4. Press the “TIMER” or button on the remotecontroller. The code “H00” (no abnormality) will bedisplayed and signal will be transmitted to the mainunit.5. Every press of the button (up or down) will increaseabnormality numbers and transmit abnormality codesignal to the main unit.6. When the latest abnormality code on the main unitand code transmitted from the remote controller arematched, power LED will light up for 30 seconds anda beep sound (continuously for 4 seconds) will beheard. If no codes are matched, power LED will lightup for 0.5 seconds and no sound will be heard.7. The breakdown diagnosis mode will be canceled bypressing the CHECK button continuously for 5seconds or without any operation the remote controlfor 30 seconds.8. The LED will be off if the unit is turned off or the ACbutton on the main unit is pressed.• To display memorized error (Protective operation)status:1. Turn power on.2. Press the CHECK button on the remote controllercontinuously for 5 seconds.3. “- -” will be displayed on the remote controller display.Note: Display only for “- -”. (No transmitting signal, noreceiving sound and no Power LED blinking.)4. Press the “TIMER” or button on the remotecontroller. The code “H00” (no abnormality) will bedisplayed and signal will be transmitted to the mainunit. The power LED lights up. If no abnormality isstored in the memory, three beeps sound will beheard.5. Every press of the button (up or down) will increaseabnormality numbers and transmit abnormality codesignal to the main unit.6. When the latest abnormality code on the main unitand code transmitted from the remote controller arematched, power LED will light up for 30 seconds anda beep sound (continuously for 4 seconds) will beheard. If no codes are matched, power LED will lightup for 0.5 seconds and no sound will be heard.7. The breakdown diagnosis mode will be canceledunless pressing the CHECK button continuously for 5seconds or operating the unit for 30 seconds.8. The same diagnosis can be repeated by turningpower on again.• To clear memorized error (Protective operation) statusafter repair:1. Turn power on.2. Press the AUTO button for 5 seconds (A beepreceiving sound) on the main unit to operate the unitat Forced Cooling Operation mode.3. Press the CHECK button on the remote controller forabout 1 second with a pointed object to transmitsignal to main unit. A beep sound is heard from mainunit and the data is cleared.• Temporary Operation (Depending on breakdown status)1. Press the AUTO button (A beep receiving sound) onthe main unit to operate the unit. (Remote control willbecome possible.)2. The unit can temporarily be used until repaired.