Trouble shooting 11
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
OK
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.
02-16
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
Outdoor unit :
POWER
MODE
ERROR
2
5
(L1)
(L2)
(L6)
(L5)
(L4)
(L3)
15
PUMP
DOWN
LOW
NOISE
PEAK
CUT
Indicate or Display:
Economy lamp : Continuous flash.
ERROR CODE : [E : 27]
Indoor Unit : Operation lamp: 2 time Flash,
Timer lamp: 7 time Flash
