28
Unit codes Alarm description
Solutions
H3
High temperature protection alarm, the
compressor stops operation, then after 30
seconds, also the fan stops operating.
• Unsuitable room temperature conditions.
• The evaporator and the condenser are
clogged with dirt.
E4
High temperature protection alarm, the
compressor stops operation, then after 30
seconds, also the fan stops operating.
• The system is blocked.
• Motor speed anomaly.
• Intake air anomaly.
• Compressor temperature probe anomaly.
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