Справочник Пользователя для Mitsubishi Electronics XL21

 
 

 

REV 2.4 

 

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Wipe with a lint free soft and dry cloth or with a damp cloth using water or alcohol. Do not use 
solvents including acid/alkali ingredients or abrasive. Do not scrub hardly with a dry hard cloth. 

Wipe with a lint free soft and dry cloth, or with a damp cloth if necessary. Then add a finish the 
cleaning with a dry cloth. 
Do not use solvents like thinner or benzene. It may cause degeneration or peeling off a coat. 

 shows a warning indication to induce filter cleaning. Clean the filter when the warning 

indication appears on screen. 
• 

CHECK FILTER: It appears when a designated time passes over. The initial setting is 4,000 
hours. When external AC fans are equipped (chapter 0, on page 17), check its correct 
working as well as filter cleaning. 

• 

OVER TEMP (white): It appears when internal temperatures become higher due to filter 
clogging or high ambient temperature. It is recommended to clean the filter. It can be erased 
by press-and-hold [ESC] button. 

• 

OVER TEMP (red with flashing): It appears when the internal temperature is approaching 
serious high limit. It is highly recommended to turn off the product immediately for cooling 
down and to clean the filter. 

1.  Open the screen unit (chapter 1.2.7.1, on page 21). 
2.  Pull the latch to unlock and pull out the filter unit. 
3.  Vacuum the dust on the filter with a 

dust brush adapter. Be careful not 
to break the filter. Do not touch the 
filter directly with a vacuum nozzle 
without a dust brush, or do not use 
a nozzle adapter to remove dust. 

 
 

 
 
4.  Put back the filter unit and close the screen unit (chapter 1.2.7.2, on page 22). 
5.  Reset the filter used hours with FILTER RESET menu. 

Filter unit

(Cooling fan)

Latch

For 

 

For 

 

Filter unit

(Cooling fan)

Latch

(Cooling fan)

Filter unit 

Latch

For