Hisense AS-07UR4SYDDB15, Service Manual, Page: 46 / 59

72
7.Trouble Shooting
7-­‐1. Error Code Table
1.Indication on the outdoor unit:
When the unit has the following trouble and the compressor stops running, The LED of outdoor control
board will show the error sequence automatically:
NOTE: ★： LIGHT O ： FLASH ´ ： OFF
Error
code Outdoor Failure
Description
LED1 LED2 LED3
the root cause my be one of the following
Mark description: the lights flash every second for the following faults
Normal
× × ×
Outdoor coil
temperature
sensor in trouble
★
´
×
★
a.
the outdoor coil sensor connect loose;
b.
the outdoor coil temperature sensor is failure;
c.
the outdoor control board is failure
Compressor
exhaust
temperature
sensor in trouble
★
´
×
´
×
a.
the compressor exhaust temperature sensor
connect loose;
b.
the compressor exhaust temperature sensor is
failure;
c.
the outdoor control board is
failure
Communication
failure between
the indoor unit
and outdoor unit
´
× ×
´ O
Ο
a.
the communication cable connect loose;
b.
the communication cable is failure;
c.
the connection between the filter board and the
outdoor control board is incorrect or loose;
d.
the connection between the filter board and the
terminal is incorrect or
loose;
e.
the
indoor control board is failure;
f.
the PFC board is failure;
g.
the power board is failure;
h.
the outdoor control board is failure.
Current overload
protection
★
O
Ο
´
×
a.
the fan motor run abnormally;
b.
the condensor and evaporator is dirty;
c.
the air inlet and outlet is abnormally
Maximum current
protection
★
O
Ο
★
a.
the outdoor control board is short circuit;
b.
the drive board is short circuit;
c.
the other components is short circuit
Communication
trouble between
outdoor unit and
´
×
★ ★
a.
the connection wires connect loose
b.
the outdoor board or drive board is failure;