TCL Air Conditioner Service Manual
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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 follow:
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
How to set the timer
Press ON/OFF button to start the air conditioner.
Press TIMER CONTROL button for once in timer on--- SET the TIME of TIMER; press for second
time---START operation for SHUT OFF; press third time---CANCEL operation for TIMER.
Press TIMER CONTROL button for once in timer off---SET the TIME of TIMER; press for second
time---START operation for TURN ON; press for third time---CANCEL operation for TIMER.
Press UP and DOWN button to set the time, time setting is 30-minutes units.
After setting the timer, check that TIMER INDICATOR lamp of the indoor unit lights.
Press the ON/OFF button for the air conditioner operates in timer, the timer will be cancelled.
TIMER setting can be cancelled by power failure or breaker functioning.
13. EMERGENCY-TEST Operation
When the EMERGENCY Operation switch is press once, COOLING mode is selected and if in 3 seconds the
EMERGENCY Operation switch is pressed again, HEATING mode is selected. Then presses once again, the
unit switch off.
When the remote controller is missing, has failed or the batteries run down, press the EMERGENCY
Operation switch on the front of the indoor unit, The unit will start.
The first 30 minutes of operation will be the test run operation. The operation is for servicing in set mode. The
indoor fan runs at high speed and the system is in continuous operation. The vane motor is ON and the timer
is reset to normal.
After 30 minutes of test run operation the system shifts to AUTO COOLING/HEATING mode. and the indoor
fan runs in outomatic speed. The vane motor is on. The operation continues until the EMERGENCY
operation switch is pressed or a button on the remote controller is pressed, the normal operation will start.
NOTE: Do not press the EMERGENCY Operation switch during normal operation.
14. AUTO RESTART function (Option)
When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the
fan speed are memorized by the indoor electric control PCB. The AUTO RESART function sets to work the