Open Window - The heater comes with a feature that will detect if a window is open and heat
is being lost, so the heater will enter a reduced-power mode instead of using unnecessary
energy. Open Window detection is activated by default. To activate/deactivate this feature:
• Press the Menu and Advance buttons and hold for 5 seconds
• The Advance menu is displayed
• Press Up three times to highlight the window icon
• Press Enter to access the
• Press Down or Up to toggle Open Window on/o
• Press Enter to confi rm
If Open Window detection is activated an Error Message will
be displayed if the Heater detects an open Window "Err 2"
will be displayed and the backlight & icon will fl ash.
Hold the Enter button for 10 seconds to cancel the
error message.
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