door stays open

RELATED FAQS

Question
Answer
To adjust the hold open time on a 4600 (4630/4640) operator: Press the "MODE" button on the control box 1 time to get into programming mode. The "YELLOW" mode indicator LED next to "HOLD OPEN TI...
A 4040SE would not hold the door open if it has : No Voltage or Improper Voltage. Check that the track has proper voltage going to it (24V AC/DC or 120V AC). If 120 volts is supplied...
This change was implemented in firmware package CO.A.6 (or later) to help the customer in the communication and coupling process between the CO200 (CO250) and the hand held device (HHD). ...
The green LED is to be lit up until the spindle (Triangles and Key Switch) are aligned properly; providing a visual indication of the problem.  
If the mechanical alignment of the triangles on the back of the outside escutcheon are not aligned, the CO200 or CO250 will not connect with the SUS/HHD and will appear to be unresponsive...
In firmware CO.A.6 (or later) the Schlage button on the CO200 (CO250) will turn green anytime that the spindle triangles on the front escutcheon are out of alignment or the mechanical key switch is...
When unlocking the CO200 door by mechanical key override, the green led will be continuously ON until the key is released. This will occur after firmware CO.A.6 (or later) has been installed int...
There is potential for ND40/ND44's manufactured around March 2011 to remain locked after egress, or after the latch is depressed.  There was an issue with the keycam that created a bind when l...
Try the steps below to improve the hold open adjustment. Remove hold open nut  Apply a couple drops of blue loctite to the threads. Re-assemble, and reset hold open. Let loctite set up overn...