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How to clean Panasonic Split System

Cleaning your Panasonic Split System is an important maintenance task to ensure optimal indoor air quality and energy efficiency. Here’s a step-by-step guide on how to clean your Panasonic Split System:

  1. Turn off the power supply to the unit.
  2. Remove the front panel of the indoor unit to access the air filters.
  3. Remove the air filters and clean them with a soft brush or vacuum cleaner. If the filters are very dirty, wash them with warm water and mild detergent, and let them dry completely before reattaching.
  4. Wipe down the interior of the unit with a soft cloth and a solution of warm water and mild detergent. Avoid getting water on any electrical components.
  5. Check the outdoor unit for debris or obstructions, and remove them if necessary.
  6. Use a garden hose to gently wash down the outdoor unit, being careful not to damage any of the components.
  7. Once the unit is completely dry, reattach the air filters and front panel.

Regular cleaning of your Panasonic Split System can help improve its efficiency, increase its lifespan, and ensure a healthy and comfortable indoor environment.


To ensure optimal performance of the unit, cleaning has to be carried out at regular intervals. Dirty unit may cause malfunction and you may see nanoe-G indicator blinks or error code “H99”. Please consult authorised dealer.

  • Switch off the power supply and unplug before cleaning.
  • Do not touch the aluminium fin, sharp parts may cause injury.
  • Do not use benzine, thinner or scouring powder.
  • Use only soap ( pH 7) or neutral household detergent.
  • Do not use water hotter than 40 °C.

Indoor Unit

  • Wipe the unit gently with a soft,
  • dry cloth.
  • Human activity sensor
  • Do not hit or violently press or poke it with a sharp
  • object. This can lead to damage and malfunction.

Ourdoor Unit

  • Clear debris that surround the unit.
  • Clear any blockage from drain pipe.

Front Panel

  • Wash gently and dry.
  • Remove the front pane

Close it securely

  • Insert at both sides
  • Close down
  • Press both ends of the front panel
  • For CS-Z18RKR, CS-Z21RKR, CS-Z24RKR, CS-Z28RKR: Press at center of the front panel.

Nanoe G Generator

Every 2 weeks

  • Clean with dry cotton bud.
  • Do not touch during operation.

Air Filter

Every 2 weeks

  • Wash/rinse the filters gently with water to avoid damage to the filter surface.
  • Dry the fi lters thoroughly under shade, away from fire or direct sunlight.
  • Replace any damaged filters.
  • For seasonal inspection after extended non-use
  • Checking of remote control batteries.
  • No obstruction at air inlet and air outlet vents.
  • Use Auto OFF/ON button to select COOL/ HEAT operation. After 15 minutes of operation, it is normal to have the following temperature difference between air inlet and air outlet vents:

COOL: ≥ 8 °C HEAT: ≥ 14 °C

For extended non-use

  • Activate HEAT mode for 2~3 hours to remove moisture left in the internal parts thoroughly to prevent mould growth.
  • Turn off the power supply and unplug.
  • Remove the remote control batteries.