13
C
ontent
Error
code
8.2. Test Run
7.4 Error Codes and Definitions
Auto restart function enabled
Auto restart function disabled
J1
E0
Mode conflict error
E1
Communication error with outdoor unit
E2
T1 Indoor ambient temperature sensor error
E3
T2 Indoor heat exchanger mid-point temperature sensor error
E4
T2B Indoor heat exchanger outlet temperature sensor error
E7
EEPROM error
Ed
EE
E9
A0
Indoor EXV coil error
Eb
Outdoor unit error
Water level alarm
Emergency stop
A1
F7
H4
FA
F8
U4
FE
H5
HA
Repeated indoor units address
Communication error between indoor unit and adapter board or panel
MS-Box self-check error
MS-Box error
Indoor unit has not been assigned an address
EEPROM error(adapter board or panel)
Smart Eye error
E6
Caution
The
DIP switch capacity has been configured before delivery.
Only professional maintenance personnel should change
these settings.
Refrigerant leak error
Fan error
Communication error with wired control
Capacity (HP number) has not been set
8.
Test Run
8.1
Precautions Before Test Run
Indoor and outdoor units are properly installed;
Piping and wiring are correct;
No refrigerant piping system leaks;
Smooth water discharge;
Insulation is complete;
Grounding has been properly connected;
Piping length and filled refrigerant amount have been recorded;
The
power
supply voltage
is
the
same
as
the air conditioner's
rated
voltage;
The indoor and outdoor units air inlet and outlet not obstructed;
Shut off valves for the gas and liquid ends of the outdoor unit are opened;
When
the
wired/remote
control
is
used
to
set the air conditioner's
cooling
operations, please
check
the
following
items
one
by
one.
If
there
is
a
fault, troubleshoot it
according
to
the
manual.
Function keys of the wired/remote control are operating normally;
Room temperature regulation is normal;
LED indicator is on;
Water discharge is normal;
No vibration and strange sounds during operation;
Note:
Once
the
power
is
connected,
when
the
unit
is
turned
on
or
started
immediately
after
the
unit
is
turned
off,
the
air
conditioner
has
a
safety
function which delays the start of the compressor.
