Heat Controller RAD-123H - Manual (Page 9)

Heat Controller, Inc. Room Air Conditioner with R-410A Owner’s Manual
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AIR CONDITIONER FEATURES (CONTINUED)
TIMER: AUTO START/STOP FEATURE
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This feature is a reminder to clean the Air Filter for more ef-
ficient operation. The LED will illuminate after 250 hours of
operation. To reset after cleaning the filter, press the Check
Filter button and the light will go off.
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