Gree GMV6 DC Inverter VRF Units Service Manual
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2.61 "F0" Poor Main Board of Outdoor Unit
Fault display:
main board of outdoor unit, wired controller of indoor unit and receiver of indoor unit
display
Fault diagnosis:
Check whether the address chip, memory chip and clock chip of the main board of the outdoor unit
can be read properly. If not, the fault is generated.
Possible causes:
■ Abnormal address chip;
■ Abnormal memory chip;
■ Abnormal clock chip.
Troubleshooting:
Yes
No
"F0" Poor Main Board of
the Outdoor Unit
Whether system clock exception
is also generated (check by using the
commissioning software)?
Replace the CPU
(small board)
No
Replace the compressor
drive board
Address chip and memory
chip are abnormal
Yes
Replace the main control
board
Is the problem solved after the
CPU (small board) is replaced?
No
Summary of Contents for GMV6 Series
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