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Service Diagnostics
• Select ‘Yes’ to enter service mode.
• Use the up and down arrows/buttons on the right of the display to scroll through the diagnostic tests.
• The display will show ‘00’ in the FZ temperature display and ’00’ in the FF temperature display.
• All the components will turn off, 3-way valve will go home, dampers will go to closed position.
• The up and down pads on the right will count up the right FF digit and the left up and down pad
count up and down the left FF digit.