Hisense AMS-07UR4SNVT4 Service Manual page 163

6. TROUBLE SHOOTING
2.Indication by the indoor unit:
2.1.
The LED of indoor display board will show the error sequence automatically when the unit has the
following trouble:
Error Power Timer
code
1 2
E2
E4
EA
Remark：
Running Sleep
3 4 Content
When the evaporator
pipe temperature is
higher than 63 ℃, the
error code will display
When the indoor fan
speed is lower than
200 rpm, the error
code will display
the error code will
display when the
communication
between display
board and control
board have in trouble
Light o Flash
★
The root cause is may be one
Remark
of the following
a.
the indoor pipe temperature between
53℃<T<63℃, the outdoor fan motor will
stop running. When the indoor coil
temperature is higher than 63℃, the
error code will display. After the indoor
pipe temperature is lower than 49℃, the
air conditioner will restart normally.
b.
c.
d.
a.
Only the indoor fan motor;
9k/12k/18 b. The fan motor cord connect loose;
K c. The fan motor is failure;
d. The indoor control board is failure
a.
display board and control board is loose;
b. The indoor control board is failure.
c.The wiring of the display board is
failure.
x OFF
It is normally for protection, When
The indoor coil temperature sensor is
loose;
The indoor coil temperature sensor is
failure;
The indoor control board is failure.
There are something block
The connection between the