Trouble shooting 7
INDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause :
OK
Indicate or Display:
Primary unit, secondary unit setup error
Indoor unit Controller PCB
Check wiring connection condition of all slave indoor units.
Check wiring connection condition in same refrigerant system.
>> If there is an abnormal condition, correct it by referring to Installation Manual
or Data & Technical Manual.
>> Upon correcting incorrect setting, reset the power.
1. Mis-wiring 2.Indoor unit address setting incorrect 3. Controller PCB failure
Check Point 1 : Check wiring connection condition
When there is no master unit in the same refrigerant system.
When 2 or more master units are connected in the same
reffigerant system.
When slave indoor unit receives serial reverse transfer signal.
When address [0] indoor unit is set as slave unit.
02-09
Refer to error code table.
Check Point 3 : Replace Controller PCB
If Check Point 1, 2 do not improve the symptom, replace Controller PCB.
Check the DIP-SW of controller setting.
>> If there is an abnormal condition, correct it by referring to Installation Manual
or Data & Technical Manual.
>> Upon correcting incorrect setting, reset the power.
Check Point 2 : Check the DIP-SW of Controller PCB setting
OK
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