Gree GMV5 Series Service Manual page 186
Dc inverter vrf units
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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
6. As shown in the figure below, put the black test probe to pad V (YE) and the red test probe to pad NV
(make sure the moisture proof tape is removed). In normal cases, the multimeter should read 0.39± 0.3 V.
If it is ―0‖ or infinitely great, the IPM module is faulty.
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