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3. Not Cooling or Heating properly
Check for obstruction of air flow at outdoor or indoor units.
Check if too many heating sources are located in the room.
Check if the air filter is clogged with dust.
Check if the doors or windows are open.
Check if the temperature condition is above the normal operation range.
4. This is Not Abnormal
Smell from indoor unit
Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good
ventilation.
Sound from Deforming Parts
During system starting or stopping, a sound might be heard. However, this is due to thermal deformation
of plastic parts. It is not abnormal.
Steam from Outdoor Heat Exchanger
During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in steam.
Dew on Air Panel
When the cooling operation continues for a long period of time under high humidity conditions (higher
than 27℃ / 80%R.H.), dew can form on the air panel.
Refrigerant Flow Sound
While the system is being started or stopped, sound from the refrigerant flow may be heard.
5. Filter removing and installing
Removing filter from air return grille
Take out the air filter according to the following steps.
Step 1
Slide the air return grille holding knobs(4), then remove the holding screws (4 or 6) as indicated by the
arrow marks.
Step 2
Open the air return grille at an angle of more than 45°and take out the air filter from the air inlet grille by
holding the air grille and lifting the air filter after detaching the filter from the hinges.
Installing the filter
Step 1:
Insert the filter to the grille and aim the bottom hooks. Pay attention to grille as top hooks are locked.
Step 2: Fix screws (4 or 6).
Step 3: The inlet grille is attached.
step 1
top hook
bottom hook
6
6
Operation Manual
step 2
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