Error code
E: 84 Outdoor current sensor error
Applies to 6 models
ASUG09LZAS, ASUG12LZAS, ASUG15LZAS, AOUG09LZAH1, AOUG12LZAH1, AOUG15LZAH1
What this means
The input current sensor detected 0 A while the inverter compressor was operating above 56 rps, one minute after startup and outside defrost operation. Electrical connections, external voltage or noise, or the main PCB may be involved.
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.