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Description: When the indoor fan speed is to low or to high undeterminate amount of time, the LED displays the failure
code and the system turns off.
1. Indoor DC Fan motor (control chip is
integrated with fan motor.
Power up the system and when the unit is in standby mode, measure the
voltage of pin 1 - pin 3 and pin 4 - pin 3 on the fan motor connection. If the
value of the voltage is not in the range showing in the table below, the PCB
must have issues and needs to be replaced.
• DC motor voltage input and output (voltage: 220-240VAC~):
• DC motor voltage input and output (voltage: 115V~):