Gree GMV6 DC Inverter VRF Units Service Manual
Yes
"Cb" IP Address
Assignment Overflow
Make sure that the number of indoor
and outdoor units in the network is less
than or equal to four according to
actual installation conditions
No
Whether there are more than
four online outdoor units in the system? Whether
the communication cables of outdoor units from
other refrigerant systems are connected
to this system?
Is the problem solved
after the indoor and outdoor units
are powered off and powered
on again?
Yes
Make sure that the number of indoor
units in the network is less than or
equal to 80 (100) according to actual
installation conditions
No
Whether the number of
online indoor units in the network
exceeds 80 (100)?
Note:
When the number of indoor units is 100, engineering customization is required.
2.43 "d1" Poor Indoor Circuit Board
Fault display: wired controller of indoor unit and receiver of indoor unit display
Fault diagnosis:
Check whether the address chip and memory chip of the indoor unit's main board can be read
properly. If not, the fault is generated.
Possible causes:
■ Abnormal address chip;
■ Abnormal memory chip.
Troubleshooting:
Replace the main control board.
2.44 "d3" Ambient Temperature Sensor Fault
Fault display: wired controller of indoor unit and receiver of indoor unit display
Fault diagnosis:
The temperature sensor detection circuit samples the AD value of temperature sensor and
determines the range of AD value. When the sampled AD value exceeds the limits for 5 consecutive
seconds, the fault is generated.
Possible causes:
■ Poor contact between the ambient temperature sensor and the main board interface;
■ Abnormal ambient temperature sensor;
■ Abnormal detection circuit.
Troubleshooting:
To Next Page
Loading...