CS-C18JKD, CU-C18JKD, CS-C24JKD, CU-C24JKD - Panasonic Air Conditioner Service Manual (repair manual). Page 40

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• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor

heat exchanger is 2.5

°C or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

T = Intake air temperature - Indoor heat exchanger temperature

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.
• If this condition happens continuously for 5 times within 50 minutes, unit will turn OFF with TIMER LED blinks.
• The 5 times counter can be reset when either one of the following condition happen:

- Unit is OFF by remote control or AUTO OFF/ON button.
- Indoor intake temperature - Indoor piping temperature > 5

°C for 1 minute or more.

- Operation mode change.

• The unit could be ON by pressing OFF/ON button at remote control but the TIMER LED will continue blinking.
• TIMER LED blinking will be reset if:

- Indoor intake temperature - indoor pipe temperature > 5

°C for 1 minute or more

- Power supply reset.

• To prevent dew formation at indoor unit discharge area.
• This control start if:-

- Cooling mode or Queit mode is activated.
- Remote Control setting temperature is less than 25

°C.

- Fan speed is at Lo or QLo.
- Room temperature is constant (±1

°C) for 30 minutes.

- Compressor is continuously running.

• Fan speed will be adjusted accordingly in this control.

- Fan speed will be increased slowly if the unit is in quiet mode and Lo fan speed.

• Dew prevention stop condition.

- Remote Control setting temperature is less than 25

°C.

- Fan speed is at Lo or QLo.
- Select Powerful operation.