D14
Meaning
D15
Meaning
blink 6 times
Unit closing down for
min.frequency
blink 6 times
frequency of current 12 A lasting for 2 minutes
blink 7 times
Unit closing down for
PFC protection
blink 7 times
frequency limiting or demultiplying for rate of
frequency variation out of control
blink 8 times
Unit closing down for
compressor overloading
blink 8 times
frequency limiting or demultiplying of compressor
current
blink 9 times
frequency limiting or demultiplying for over temp.of
IPM module
D17
Meaning
D18
Meaning
blink 1 time
too low DC input voltage
On
receiving or sending indoor data
blink 2 times
too high DC voltage
when no short-circuit in
computer monitor port
off
receiving or sending indoor data finished
blink 3 times
AC current protection
blink
normal communication between main borad and
driving board
blink 4 times
IPM abnormality
short-circuit in
computer monitor port
not
blink
abnormal communication between main board and
driving board
blink 5 times
reserved built-in PFC
protection
blink 6 times
start-up failure
blink 7 times
phase-losing or out of
control
blink 8 times
first PFC protection ;then
module protection
-14-
