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ALARMS TABLE
If malfunctioning occurs during system functioning,
the units show the relative alarm code which easily
permits to the After-Sales Service Area to identify the
cause of errors; this error code is displayed on the unit;
the following table indicates the alarm codes and their
causes.
ERROR CODES
Unit codes Alarm description
Solutions
F1
Malfunction of the room air temperature
probe with stopping of the compressor and
the fan motor.
• The room temperature probe is loose or
incorrectly connected with the control
panel.
• Some parts of the control panel may be
incorrectly connected or short circuited.
• The room temperature probe is damaged.
• The control panel is damaged.
F2
Malfunction of the tube temperature sensor,
which stops the compressor and the fan
motor.
• The temperature probe on the evaporator
is loose or incorrectly connected with the
control panel.
• Some parts of the control panel may be
incorrectly connected or short circuited.
• The temperature probe on the evaporator
is damaged.
• The control panel is damaged.
F5
Malfunction of the discharge temperature
sensor.
• The temperature probe on the evaporator
is loose or incorrectly connected with the
control panel.
• Some parts of the control panel may be
incorrectly connected or short circuited.
• The temperature probe on the evaporator
is damaged.
• The control panel is damaged.
L1
Malfunction of the humidity probe, which
stops the compressor and the fan motor.
• The humidity probe is damaged.
• The humidity probe has short circuited.
• The control panel is damaged.
F0
Low freon level, the compressor stops
operation, then after 30 seconds, also the fan
stops operating.
• Refrigerant leakage.
• The system is blocked.
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