innovair QUANTUM WIN12HV51 User Manual page 30

INNOVAIR QUANTUM INVERTER
Error Code Indicators
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 O
★： ：
Error Outdoor Failure
code Description
Mark description: the lights flash every second for the following faults
Normal
Outdoor coil
temperature
sensor in trouble
Compressor
exhaust
temperature
sensor in trouble
Communication
failure between
the indoor unit
and outdoor unit
Current overload
protection
Maximum current
protection
Communication
trouble between
outdoor unit and
driver
FLASH ×
OFF
：
LED1 LED2 LED3
× ×
×
★
×
★
×
O
×
O
★
★
O
×
★
The cause may be one of the following
×
a. the outdoor coil sensor connect is loose;
b. the outdoor coil temperature sensor fails;
★
c. the outdoor control board fails
a. the compressor exhaust temperature sensor
connect is loose;
b. the compressor exhaust temperature sensor
×
fails;
c. the outdoor control board fails
a. the communication cable connect is loose;
b. the communication cable fails;
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 fails;
f. the PFC board fails;
g. the power board fails;
h. the outdoor control board fails.
a. the fan motor runs abnormally;
b. the condenser and evaporator is dirty;
×
c. the air inlet and outlet is abnormal
a. the outdoor control board is short circuit;
b. the drive board is short circuit;
★
c. the other components is short circuit
a. the connection wires connect loose
★
b. the outdoor board or drive board fails;
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TROUBLESHOOTING