GREE DC Inverter Side Discharge VRF Ⅱ for North America
90
Description of each stage of debugging progress
Code meaning and operation method
05_ Detect
ODU’s internal
communication
and capacity
ratio
Communication between master ODU
and driver has error. Check the
communication connection of ODU’s
main board and drive board. When the
error is eliminated, start next step. If
power is off during troubleshooting, then
restart debugging from progress 01 after
power is on.
Communication of master ODU and
driver is normal. Unit will display as in the
left for 2s and detect the capacity ratio of
IDU and ODU. If the ratio is within range,
than next step will start 2s later. If the
ratio is out of range, unit will display as
below:
Rated capacity ratio of IDU is too high.
Change the combination way of IDU and
ODU to make the ratio within range. And
restart debugging from progress 01.
Rated capacity ratio of IDU is too low.
Change the combination way of IDU and
ODU to make the ratio within range. And
restart debugging from progress 01.
Outdoor component’s error. LED3 will
display the related error code. After errors
are eliminated, system will start next step
automatically. If power is off during
troubleshooting, then restart debugging
from progress 01 after power is on.
System detects no error on outdoor
component. 10s later, next step starts.