Gree GWH09AB-A3DNA1B - Page 61

Troubleshooting
(9) Flow chart for outdoor communitcation circuit detecting:
Y
Y
Y
Y
Y
N
N
N
N
Start
Measure voltage at the
Test 10 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 15 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 11 position as
shown in the diagram
with a voltmeter
Value jumping
Measure voltage at the
Test 12 position as
shown in the diagram
with a voltmeter
Value jumping
The communication
circuit of the outdoor
unit is normal
End
Fault with
outdoor unit
Note: Below information only for reference.
58