Trouble shooting 16
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Indoor unit power supply error for
fan motor
Indoor Unit Controller PCB
When a momentary power cut off.
When do not start fan motor.
1. External cause 2. Connection of connector failure 3. Controller PCB failure
Check Point 3 : Replace Controller PCB
If Check Point 1, 2 do not improve the symptom, replace Controller PCB.
OK
OK
Check Point 2 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 1 : Check external cause at lndoor and Outdoor (Voltage drop or Noise)
Instant drop : Check if there is a large load electric apparatus in the same circuit.
Momentary power failure : Check if there is a defective contact or leak current
in the power supply circuit.
Noise : Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.
02-21
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 : 39]
Indoor Unit : Operation lamp: 3 time Flash,
Timer lamp: 9 time Flash
