Panasonic CS-KS12NB41 and CZ-18BT1U + Service Manual

To reset the filter indicator, press and hold the 'Filter Reset' button on the remote control until the indicator light turns off.
Ensure that the air filters are clean, the temperature setting is correct, and the outdoor unit is not obstructed. If the issue persists, contact a professional technician.
Open the front panel of the indoor unit, remove the filters, and wash them gently with lukewarm water. Let them dry completely before reinstalling.
Check for loose parts or debris in the outdoor unit. If the noise continues, it might indicate a mechanical issue, and you should consult a professional technician.
It is recommended to clean the air filters every two weeks and schedule professional maintenance annually to ensure optimal performance.
Press the 'Timer' button on the remote control, set the desired time using the up and down arrows, and confirm by pressing the 'Set' button.
The 'Eco Mode' optimizes power consumption by adjusting the temperature and fan speed settings to maintain comfort while saving energy.
Ensure the drainage pipe is not clogged and that the unit is installed at the correct angle. If water leakage persists, consult a professional technician.
First, replace the batteries. If the remote still does not work, check for any obstruction between the remote and the unit, or consider resetting the remote.
Regularly clean the air filters, use the 'Eco Mode', ensure doors and windows are closed when the unit is running, and set the thermostat to a moderate temperature.