Frigidaire FHPC082AC1 Use & Care Manual page 10

Operating Instructions
Filter reset
This feature is a reminder to clean the Air Filter (See Care and Cleaning) for more efficient operation.
The filter indicator will illuminate after 250 hours of fan operation. Press the "filter reset" button, to reset after cleaning
the filter.
function
Press the " " and " "button the same time for more than 3 seconds to switch between degree Fahrenheit and
degrees Celsius.
Note: Under Dry/Fan mode, you can not select °F/°C.