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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 have short
circuited.
• The room temperature probe is damaged.
• The control panel is damaged.
F2
Malfunction of the evaporator, 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 have 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.
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.
Summary of Contents for DML 100
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