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7.Trouble
S hooting
7-‐1.
E rror
C ode
T able
7.1 The LED of indoor display board will show the error sequence automatically when the unit has the
following trouble.
Remark：
Error
code
Content
When the evaporator pipe
temperature is higher
E2
than 63 ℃, the error code
will display
When the indoor fan
speed is lower than 200
E4
rpm, the error code will
display
the error code will display
when the communication
EA
between display board
and control board have in
trouble
7.2.The Error inquiry should be operate in the stand-by state, keep 5 sec press and hold on the
Emergency button in the indoor unit, the LEDof indoor display board will be shown in 10 sec, then the indoor
display will recovery to the original. If two or more malfunction happened, each error sequence will be
displayed alternatively. If the appliance could save information under no power condition, then LED can be
inquired as aforesaid with stand-by state after power resume.
NOTE:
If the troubleshooting inquiry display by 7-segment tube, then the error code will be
displayed, otherwise only the LED of the display board can show.
Remark：★Light
Error
code
Content
The failure for
1
temperature sensor of
outdoor coil
The failure for outdoor DC
20
motor
Light
o Flash
★
Remark
o
x
Flash
OFF
Remark
Heat pump
x OFF
The root cause is may be one of the following
a.
It is normally for protection, When
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.
The indoor coil temperature sensor is loose;
c.
The indoor coil temperature sensor is failure;
d.
The indoor control board is failure.
a.
There are something block
the indoor fan motor;
b. The fan motor cord connect loose;
The fan motor is failure;
d. The indoor control board is failure
a.
The connection between the
display board and control board is loose;
b. The indoor control board is failure.
c.The wiring of the display board is failure.
The root cause is may be one of the following
a.
The outdoor temperature sensor loose;
b.
The outdoor temperature sensor is failure;
c.
The indoor control board is failure
a.
The motor cord connection loose
b.
The motor is invalid
c.
The outdoor fan is blocked
d.
The outdoor control board is invalid
51
c.
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