YKEQ-YCNQ 251~671 GR Air Conditioners Service Manual
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motor is shut off. 10 seconds later, the electric current is applied to the fan motor again. During the fan motor
lock-up, the POWER indicator lamp flashes on and off 6times/cycle or E6 to show the fan motor
abnormality.
10. Auto Fan Speed Control
(1) When the auto fan speed is selected, the indoor fan motor speed is automatically controlled by the room
temperature and the set temperature.
(2) In COOLING mode, the indoor fan motor operates as following:
Fan Speed
Hi
Me
Lo
Room temperature minus set temperature: 1℃ 2℃ 4℃
(3) In HEATING mode, the indoor fan motor operates as following;
Fan Speed
Hi
Mi
Lo
Room temperature minus set temperature 1
℃ 2℃ 4℃
11. Auto Vane Operation control
(1) Vane motor drive
The unit is equipped with a stepping motor for the vane. The rotating direction, speed, and angle of the
motor are controlled by pulse signal transmitted from indoor microprocessor.
(2) Positioning
The vane is once pressed to the vane stopper below to confirm the standard position and then set to the
desired angle. The positioning is decided as follows:
When the ON/OFF button is pressed.
When the vane control is change from AUTO to MANUAL.
When the SWING is finished.
When the test run starts.
When the power supply turns ON.
(3) The auto vane changes as follows by pressing the VANE CONTROL button.
(4) VANE AUTO mode
In vane auto mode, the microprocessor automatically determines the vane angle and operation to make the
optimum room-temperature distribution.
(5) SWING mode
When presses the SWING button, the vane swings.
12. TIMER Operation
(1) To activate the air conditioner at the desire time, follow the procedure specified below(the remote control
and air conditioner are switched off):
Press the Timer button.
Select the desired mode by pressing the Mode button.
Select the desired temperature by pressing the ▲ ▼ button(only possible when the ‘cool’ or ‘heat’
mode is selected).
Select the ventilator speed (low, medium or high) or automatic mode(only possible when the feel, Cool
or Heat mode is selected) by pressing the Fan button.
The ventilator always operates in the Auto mode when the Dry mode is selected.
Select Swing or no Swing by pressing the Swing button.
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