Gree GMV-ND07PLS/A-T(U) Service Manual page 66

Multi Variable Air Conditioners Indoor Unit for North America
Step 2: Press and hold the "MODE" button on the wired controller for more than five seconds.
Step 3: Check whether the setting is successful. If it is, "MASTER" on the wired controller will be on.
Otherwise, repeat steps 1 and 2.
Method 2:
Step 1: Press and hold the ―FUNCTION‖ button for five seconds in power-on or power-off status to
enter the parameter query interface.
Step 2: Press and hold the ―FUNCTION‖ button for five seconds in "C00" status to enter the
parameter setting interface.
Step 3: Press ―▲‖ or ―▼‖ to switch level 2 parameter codes till ―P10‖ is displayed on the temperature
area.
Step 4: Press the ―MODE‖ button to set the parameter to "01" and then Press the ―SWING/ENTER‖
button. If the setting is successful, "MASTER" on the wired controller will be on.
Master IDU Display
① For IDUs connected with wired controllers, "MASTER" on the wired controller connected with the
master IDU will be on.
② For IDUs embedded or connected with LED panels, the operation LED on the LED panel of the
master IDU will blink three times.
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