1. External cause 2. Connector connection failure 3. Main PCB failure 4. Active filter module failure
Test 2 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or miss-swiring, reset the power.
Test 4 : Replace Main PCB
If Test 1 - 3 do not improve the symptom, replace Main PCB.
(SERVICE PARTS INFORMATION 10)
Test 1 : Check external cause at Indoor 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.
Test 3 : Check Active filter module
Check Active filter module. (SERVICE PARTS INFORMATION 8)
>>If Active filter module is abnormal, replace it.
OK
OK
OK
Trouble shooting 18
OUTDOOR UNIT Error Method:
Active Filter Error
Outdoor unit main PCB
Active filter module
When inverter input DC voltage is higher than 430V or lower than 110V.
When a momentary power cut off occurred on low voltage.
Detective Actuators:
Detective details:
Indicate of Display:
Forecast of Cause:
02-23
Indoor Unit
Outdoor Unit
Operation lamp : 6 time Flash
ERROR CODE : [E : 64]
Timer lamp: 4 time Flash
No Display
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