GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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2. Set a multimeter to gear diode. As shown in the figure below, put the black test probe to pad P (on
the left of pad U (BL)) and the red test probe to pad U (BL) (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.
3. As shown in the figure below, put the black test probe to pad P and the red test probe to pad V
(YE) (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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