Fujitsu Inverter Halcyon AOU12RL, Service Instruction

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Trouble shooting 14
INDOOR UNIT
OUTDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause :
OK OK
OK OK
Active Filter Module (AFM) error
Outdoor Unit Main PCB Circuit
1. External cause 2. Connector connection failure 3. Main PCB failure
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 3 : Replace Main PCB
If Check Point 1, 2 do not improve the symptom, change Main PCB.
Check Point 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.
06-18
When inverter input DC voltage is higher than 467V or
lower than 237V.
When a momentary power cut off occurred on low voltage.
Indicate or Display:
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation LED : 8 times, Timer LED : 2 times
ERROR CODE : [E : 19]