three red flashes

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On power-up the CO-Series locksets will provide 5 quick RED Schlage Button flashes and 5 quick beeps to indicate that the electronics (credential reader) has been changed.  In order to recover...
When/If the electronics (Credential Reader) changed on a CO-Series lockset, the lock will respond with 3 RED Schlage button flashes and 3 beeps for any key press or credential presentation.&nb...
CO Reader Modules cannot be replaced by Reader Modules with a different credential type; for example, a magnetic swipe credential reader cannot be replaced with a proximity credential rea...
A Credential Reader MAY be replaced with another Credential Reader of the same type; however, a Factory Default Reset must be performed before the lock will function properly.
CO Reader Modules are not individually replaceable, nor can they be swapped between locks. The inside and outside assemblies of a CO lock are a matched/mated set and cannot be swapped to change rea...
Most common issue listed below: Chexit devices shipped after 8-24-2015 with motor driven. The Green wire is not shoeted to the Red wire if no Access Control system is used.If Access Control is us...
 Chexit devices shipped prior to 8-24-2015 with solenoid driven. The GREEN wire is not shorted to the WHITE if no Access Control system is used.If Access Control system is used,...
When trying to program a CM lock, it may display an error code with a solid green light and 10 read flashes. This indicates the lock has already been programmed with computer software and manual pr...
PIM400-485 and AD400 Two red SCHLAGE LED flashes indicates the AD400, PIM400-485 and ACP all have operational communication, and the ACP denied access with a RS-485 command. With a PIM400-485 tw...
PIM400-TD2 and AD400 Two red flashes indicates the AD400, PIM400-TD2 has radio RF communication; but the AD400 did not get a strike, GO, relay closure from the ACP. With a PIM400-TD2 TWO red fla...
  ONE red flash, One red flash indicates RF COM loss, the AD400 radio did not get an answer from the PIM400-485 radio or the PIM400-TD2 radio. The PIM400-485 will turn off it's radio if th...