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648PRO Displays dO Or

Topics:

  • Error code dO Or
  • The word door appears on the control panel
  • 648PRO with do or or door on display
  • Alarm chiming on 648PRO when door alarm is turned off
  • 648PRO door alarm do0r error

Answer:

The door alarm (dO Or) feature was added to 648PRO at the end of 2015.

  • The feature may have also been added to the unit during a service visit.
  • The "do or" alarm will not display when the door is left ajar and unit is in Sabbath mode.

When dO Or is activated:

  • The unit will start to chime and flash "dO Or" on the control panel if the door is left open longer than five minutes.
    • The feature cannot be turned off.
    • The "dO Or" feature will activate even with the door ajar alarm turned off.
    • Closing the door will reset the alarm.
    • After the door is closed, the control panel will not respond for five minutes.
    • After five minutes, the unit will operate normally.
  • The standard door alarm starts to chime after the door is open 30 seconds and can be turned off.

Refer to the product use and care guide for further information.

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