Power off, then restart the unit 2 minutes later.
Are any leakages
present?
Check System for blockages and
clear blockages if present.
Does a problem remain?
Put your hands in front of the
indoor air outlet.
YES
Is there cool
air blowing out from
indoor air outlet?
Is it securely
attached?
Replace the
indoor PCB
YES
Check the T2 sensor.
YES
Check system for leakages.
NO
NO
Repair the leakage and
recharge the refrigerant.
YES
NO
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