Honeywell RTH8580WF - Cleaning the screen

Note: System setting function 0500 governs the filter interval. See “Filter Change Reminder” on
page 57.
Cleaning the screen
1. Press SCREEN to lock the screen for cleaning. The screen will remain locked for 30 seconds so
you can clean the screen without changing any settings.
2. After 30 seconds, press DONE to resume normal operation, or press SCREEN again if you require
more time for cleaning.