ES4000 Reset Service Timers Starting from the Main screen:
• Press Enter button until enter in main menu.
• Select and press Enter button to enter in data menu.
• Scroll up or down till press Enter button
• Scroll up or down to enter password 9989 then press Enter Button.
• Scroll up or down till press Enter button.
• press Enter button service hours timers hours are displayed.
• Scroll up or down to adjust hours to desired level then press Enter button.