Fujitsu ASU30RLE Service Instruction page 55

Trouble shooting 16
OUTDOOR UNIT Error Method:
Active Filter Error
Detective Actuators:
Outdoor unit main PCB
Active filter module
Transistor PCB
Forecast of Cause:
1. External cause
5. Transistor PCB failure
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
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.
OK OK
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-wiring, reset the power.
OK OK
Test 3 : Check Active filter module
Check Active filter module.
>>If Active filter module is abnormal, replace it.
OK OK
Test 4 : Check Transistor PCB
Check Transistor PCB
>>If Transistor PCB is abnormal, replace it.
OK
Test 5 : Replace Main PCB
If Test 1 - 4 do not improve the symptom, change Main PCB.
Indicate of Display:
Indoor Unit :
Operation lamp: 6 times Flash,
Timer lamp
ERROR CODE : [E : 64]
Detective details:
① When inverter input DC voltage is higher than 430V or lower than 110V.
② When a momentary power cut off occurred on low voltage.
2. Connector connection failure
in the power supply circuit.
: 4 times Flash
3. Main PCB failure 4. Active filter module failure
02-19
Outdoor unit : No indication