Haier · Air Conditioning
This error relates to a detection error within the unit's operational loop, often referring to a control or sensor circuit.
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Identify the 'Outdoor Malfunction 19' code.
Power down the air conditioner completely.
Check all visible wiring connections within the outdoor unit.
Turn the power back on and restart the system.
If the error persists, a service technician should diagnose the loop detection system.