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15.2.1.2 To display memorized error (Protective operation) status
1. Turn power on.
2. Press the CHECK button on the remote controller continuously for 5 seconds.
3. “- -” will be displayed on the remote controller display. Note: Display only for “- -”. (No transmitting signal, no
receiving sound and no Power LED blinking.)
4. Press the “TIMER” ▲ or ▼ button on the remote controller. The code “H00” (no abnormality) will be
displayed and signal will be transmitted to the main unit. The power LED lights up. If no abnormality is stored
in the memory, three beeps sound will be heard.
5. Every press of the button (up or down) will increase abnormality numbers and transmit abnormality code
signal to the main unit.
6. When the latest abnormality code on the main unit and code transmitted from the remote controller are
matched, power LED will light up for 30 seconds and a beep sound (continuously for 4 seconds) will be
heard. If no codes are matched, power LED will light up for 0.5 seconds and no sound will be heard.
7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5
seconds or operating the unit for 30 seconds.
8. The same diagnosis can be repeated by turning power on again.
15.2.1.3 To clear memorized error (Protective operation) status after repair:
1. Turn power on.
2. Press the AUTO button for 5 seconds (A beep receiving sound) on the main unit to operate the unit at
Forced Cooling Operation modes.
3. Press the CHECK button on the remote controller for about 1 second with a pointed object to transmit signal
to main unit. A beep sound is heard from main unit and the data is cleared.
15.2.1.4 Temporary Operation (Depending on breakdown status)
1. Press the AUTO button (A beep receiving sound) on the main unit to operate the unit. (Remote control will
become possible.)
2. The unit can temporarily be used until repaired.
Error Code Operation Temporary items
H27, H28 Cooling, Heating Emergency operation with limited power
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