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Troubleshooting 2.4.1.5. Indoor fan Speed has been out of control. (Only for the units used DC motor) DC motor voltage input and output (control chip is inside the motor) DC motor voltage input and output NO. 1 2 3 4 5 6 110 Color Red --Black White Yellow Blue Signal Vs/Vm --GND Vcc Vsp FG Voltage 192V~380V --0V 13.5-16.5V 0~6.5V 15V Electrical Control System