6. TROUBLE SHOOTING
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
：FLASH
：OFF
Outdoor Failure Description
LED1 LED2 LED3
the root cause my be one of the
following
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
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
★
a.the fan motor run abnormally;
b.the condensor and evaporator is
dirty;
c.the air inlet and outlet is
abnormally
Maximum current protection
★
★
a.the outdoor control board is short
circuit;
b.the drive board is short circuit;
c.the other components is short
circuit
To Next Page
Loading...
Need help?
General
