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11-2 MALFUNCTION CODE
E9
Electric expansion valve
• For places where the malfunction code is left blank,
malfunction (Outdoor unit)
the"@>" indication is not displayed. Though the system
EA
Cooling/heating switch
continues operating, be sure to inspect the system and make
malfunction (Outdoor unit)
repairs as necessary.
Discharge piping
• Depending on the type of indoor or outdoor unit, the
F3
temperature malfunction
malfunction code may or may not be displayed.
(Outdoor unit)
High pressure control
Malfunc-
lion code Descriptions and measures
Remarks
(in cooling) (Outdoor unit)
Sensor fault for inverter
A1
Indoor Printed Circuit Board
(Outdoor unit)
failure
High pressure switch failure
A3
Drain level abnormal
H3
(Outdoor unit)
Indoor fan motor overload,
Low pressure switch failure
over current, lock
H4
A6
(Outdoor unit)
Indoor Printed Circuit Board
Outdoor fan motor position
connection failure
H7
signal malfunction
AB
Indoor unit power supply
(Outdoor unit)
voltage abnormal
CT abnormality
Humidifier system
(Outdoor unit)
malfunction
Outdoor air thermistor
Abnormal stop is applied
Air cleaner faulty
system malfunction
depending on the model or
Only the air cleaner does
(Outdoor unit)
condition.
not function.
Pressure sensor system
Capacity setting adapter
malfunction (batch)
or capacity data error, or
(Outdoor unit)
disconnection of the capac-
Current sensor system
Abnormal stop is applied
AJ
Capacity setting failure
ity setting adapter, failure
depending on the model or
to connect the adapter, or
malfunction (Outdoor unit) condition.
the capacity is not set to the
Discharge piping thermistor Abnormal stop is applied
data-retention IC.
system malfunction
depending on the model or
Transmission error between
(Outdoor unit)
condition.
C1
indoor Printed Circuit Board
Suction piping thermistor
(Master) and indoor Printed
system malfunction
Circuit Board (Slave)
(Outdoor unit)
Indoor heat exchanger
Abnormal stop is applied
Outdoor heat exchanger
liquid pipe temperature
depending on the model or
distributor liquid piping
Abnormal stop is applied
sensor malfunction
condition.
thermistor malfunction
depending on the model or
Indoor heat exchanger
(Outdoor unit)
condition.
Abnormal stop is applied
condenser/ evaporator
depending on the model or
Outdoor heat exchanger
temperature sensor mal-
condition.
condenser/ evaporator
Abnormal stop is applied
function
thermistor malfunction
depending on the model or
Abnormal stop is applied
(Outdoor unit)
condition.
Suction air thermistor
malfunction
depending on the model or
Liquid piping thermistor
Abnormal stop is applied
condition.
system malfunction
depending on the model or
Remote controller thermo
(Outdoor unit)
condition.
Remote controller air
does not function, but
Gas piping thermistor
thermistor malfunction
body thermo operation is
malfunction (cooling)
enabled.
(Outdoor unit)
E0
Action of safety device
Discharge piping pressure
(Outdoor unit)
JA
sensor system malfunction
E1
Outdoor Printed Circuit
(Outdoor unit)
Board failure (Outdoor unit)
Suction piping pressure
E3
High pressure malfunction
JC
sensor system malfunction
(Outdoor unit)
(Outdoor unit)
E4
Low pressure malfunction
L1
Inverter system malfunction
(Outdoor unit)
(Outdoor unit)
ES
Compressor motor lock
L3
Reactor thermistor
malfunction (Outdoor unit)
malfunction (Outdoor unit)
E6
Compressor motor lock by
L4
Overheated heat-radiating
Inverter cooling failure.
over current (Outdoor unit)
fin (Outdoor unit)
Outdoor fan motor lock
The compressor engines
malfunction (Outdoor unit)
LS
Instantaneous overcurrent and turbines may be
E7
Outdoor fan instant over-
(Outdoor unit)
experiencing a ground fault
current malfunction
or short circuit.
(Outdoor unit)
Electric thermal
The compressor engines
Input overcurrent
LB
(Outdoor unit)
and turbines may be over-
EB
(outdoor unit)
loaded and disconnected.
17
Summary of Contents for FDMA125AV16
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