Error code
57 Louver fault
How it shows on the unit OPERATION 5 blinks, TIMER 7 blinks; each lamp is 0.5 s on/0.5 s off
Applies to 3 models
ASYG09KMCB, ASYG12KMCB, ASYG14KMCB
What this means
The airflow louver or its drive has a fault or blockage.
When to call a technician
This fault involves refrigerant, pressure, or electrical work that must be handled by a certified technician under EU F-gas rules. Do not attempt to open the refrigerant circuit, access mains wiring, or adjust pressure components yourself. Contact a qualified installer or servicer for this one.
See the official Fujitsu manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.
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