Hitachi RCI-3.0UFE1NH - Troubleshooting

3.3 Clean the Filter
Clean the air lter according to the following steps.
Step 1
Use a vacuum cleaner or let water ow onto the air lter for removing the dirt from the air lter.
!
CAUTION
Do not use hot water with temperature higher than 40ºC.
Step 2
Dry the air lter in order to remove excess moisture.
3.4 Reset of Filter Indication
After cleaning the air lter, press the “Emergency switch” button. The FILTER indication will disappear and the next lter cleaning
time will be set.
4 Troubleshooting
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CAUTION
When drain water overows from the indoor unit, stop the operation and contact your dealer.
When you smell or see white smoke coming out of the unit, turn OFF the main power supply and contact your dealer.
4.1 If Trouble Still Exists
If the trouble still exists even after checking the following, contact your dealer and inform them of the following items:
(1) Unit Model Name
(2) Content of Trouble
4.2 No Operation
Check whether the SET TEMP is set at the correct temperature.
4.3 Not Cooling or Heating Properly
• Check for obstruction of air ow of outdoor or indoor units.
• Check if there are too many heating sources in the room.
• Check if the air lter is clogged with dust.
• Check if the doors or windows are open.
• Check if the temperature condition is within the operation range.
4.4 This is Not Abnormal
• Odour from Indoor Unit
Unpleasant odour diffuses from indoor unit after a long period of shutdown. Clean the air lter and panels or allow a good
ventilation.
• Sound from Deforming Parts
When start or stop the system, 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, dew can form on the air panel.
• Refrigerant Flow Sound
While the system is being started or stopped, the refrigerant ow sound may be heard.
OPERATION MANUAL
HO2019289HA
11
EN