Troubleshooting Outdoor Components; Eev Troubleshooting - Gree Neo GWH09MA-A3DNA3A Installation, Service & Troubleshooting

Cooling Mode
Input
To check the operation of the EEV Valve in cool-
ing mode, using a digital thermometer record
the temperature of the input line and the output
line of the valve as indicated in the picture above.
With the compressor running, the input side of
the valve should have a higher reading then the
output side indicating that the valve is meter-
ing. If the temperature readings are the same, the
valve is fully open and the valve is not metering.
Since the pressures and frequency are controlled by
the G10 technology of the outdoor circuit board,
there are no pressure checks that can be made.
Resistance readings of EEV valve with wire plug disconnected from circuit board. Power to unit should be off
when making resistance readings. Readings below are approximate values and may vary slightly with different
outdoor models.
EEV Ω
Orange
Red
Yellow
Black
Blue

Troubleshooting Outdoor Components

EEV Troubleshooting

Output
Orange Red
94.6 Ω
Heating Mode
Output
To check the operation of the EEV Valve in heating
mode, using a digital thermometer record the tem-
perature of the input line and the output line of the
valve as indicated in the picture above. With the com-
pressor running, the input side of the valve should
have a higher reading then the output side indicating
that the valve is metering. If the temperature readings
are the same, the valve is fully open and the valve is not
metering. Since the pressures and frequency are con-
trolled by the G10 technology of the outdoor circuit
board, there are no pressure checks that can be made.
Yellow Black
94.8 Ω 94.4 Ω
94.7 Ω 94.4 Ω
94.6 Ω
Input
Blue
47.0 Ω
47.5 Ω
47.7 Ω
47.4 Ω
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