This is caused by Communication wire break or faulty
The Error will be Reset after Changing ok
Communication wire
If indoor coil tube temperature reaches ≤ 1 deg C
Check Unit Airflow for any Restriction ( Air filter Block )
Low gas charge / Refrigerant circuit partial Blockage.
Communication Failure (C-Er)
Indoor Antifreeze Activation on remote ( df1)
11. LP Error display on Remote (LP1).
12. SPPR Error display on Remote (SPPR).
13. Airflow Error display on Remote (AF).
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