Timer Control; Random Auto Restart Control; Remote Control Signal Receiving Sound - Panasonic CS-A7DKD Service Manual

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8.12.2. Error Detection Control
• The error detection control is to inform user that error occurs at ionizer system and repairing job will be needed.
• There are two types of error detection control:
a. When Ionizer is ON
− If ionizer feedback = Lo for 24 times within 11hr 30min, ION LED blinks continuously.
b. When ionizer is OFF
− If ionizer feedback = Hi, ION LED blinks continuously.
• During ionizer at breakdown condition, if ionizer feedback voltage = Lo (become normal), ION LED will stop blinking.
• The error detection control can be reset by:
i) Pressing the OFF/ON operation button to switch the operation OFF.
ii) Pressing the Auto Operation button to force the operation OFF.
iii) Setting the OFF Timer to stop the operation (Not applicable when ionizer is OFF).

8.13. Timer Control

• There are 2 types of timer, ON and OFF timer.
• Both ON and OFF timer can be set by pressing ON or OFF button respectively.
• By pressing ON/OFF operation button, ON Timer or OFF Timer will not be cancelled.
• To cancel the previous timer setting, press CANCEL button.
• To activate the previous timer setting, press SET button once again.
• If main power supply is switched off, the timer setting will be cancelled.
8.13.1. ON Timer
• When ON Timer is set by using the remote control, the unit will start to operate slightly before the set time, so that the room will
reach nearly to the set temperature by the set time.
• For Cooling and Soft Dry operation, the operation will start 15 minutes before the set time.
• For Heating operation, the operation will start 30 minutes before the set time.
• For Automatic operation, the indoor fan will operate at SLo speed for 25 seconds, 30 minutes before the set time to detect the
intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.
8.13.2. OFF Timer
• When OFF Timer is set by using the remote control, the unit will stop operate according to the desired setting.

8.14. Random Auto Restart Control

• If there is a power failure during operation, the air conditioner will automatically restart after 3 to 4 minutes when the power is
resumed.
• It will start with previous operation mode and airflow direction.
• If there are more than one air conditioner unit in operation and power failure occur, restart time for each unit to operate will be
decided randomly using 4 parameters:- intake air temperature, setting temperature, fan speed and air swing louver position.
• This Random Auto Restart Control is not available when Timer is set.
• This control can be omitted by open the circuit of JX2. (Refer Circuit Diagram)

8.15. Remote Control Signal Receiving Sound

• Long beep sound will be heard when:-
− Stopping the air conditioner using OFF/ON operation button.
− Stopping the Quiet Mode.
− Stopping the Powerful Mode.
− Stopping the Ion Mode.
• Short beep sound will be heard for others setting.
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