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6. TROUBLE SHOOTING
2.2.When the unit has the following trouble and the compressor stops running, press the sleep button on
the remote controller for 4 times and the 7-segment tube of the display board will show the error code as the
following, if two malfunction happened at the same time, it need press the sleep button for 4 times again, the
LED will show the other error code.
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.
Power
Timer
Error
code
1
2
1
x
o
33
o
x
34
o
x
38
o
★
39
o
x
41
★
★
42
o
o
Running
Sleep
Remark：★Light
3
4
Content
The failure for
x
x
temperature sensor of
outdoor coil
The failure for
x
temperature sensor of
★
indoor room
The failure for
x
temperature sensor of
★
indoor coil temperature
Indoor EEPROM failure
★
★
Indoor fan motor run
★
★
abnormally
The failure for Indoor
x
★
grounding protective
x
Overcooling protection
★
o
x
Flash
OFF
The root cause is may be one of the
Remark
following
The outdoor temperature sensor loose;
a.
The outdoor temperature sensor is
b.
Heat pump
failure;
The indoor control board is failure
c.
The indoor room temperature sensor
a.
loose;
The indoor room temperature sensor is
b.
failure;
The indoor control board is failure.
c.
The indoor coil temperature sensor
a.
loose;
The indoor coil temperature sensor is
b.
failure;
The indoor control board is failure.
c.
The EEPROM chip loose;
a.
The indoor control board is failure
b.
There are something block the indoor fan
a.
motor;
7k,9k,12k,
b. The fan motor cord connect loose;
18K
c. The fan motor is failure;
d. The indoor control board is failure
The indoor control board is failure
It is normally for protection, When the
a.
indoor pipe temperature below
T<-1℃(-7℃).Outdoor fan motor and
compressor will stop running. When the
Indoor pipe temperature is higher than
7k,9k=-1℃
-1(-7℃),the unit will restart normally
12k=-7℃
The indoor coil temperature sensor is
b.
loose;
The indoor coil temperature sensor is
c.
failure;
The indoor control board is failure.
d.
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Table of Contents
Troubleshooting
