Trouble Shooting Folger Adam Strikes Problem Possible Solutions Strike does not operate when energized Check for proper voltage being supplied to the strike. Check all wiring. Strike operates intermittently Check for loose wire connection Solenoid overheating or burned out Check for proper alignment between strike keeper and bolt, realign strike if necessary. The keeper may not be returning to the fully locked position.  Check operation with the door open.  If the strike re-locks, check the horizontal alignment between the strike keeper and the latch bolt.  There is a 1/8" (3.2mm) horizontal adjustment available.  Shift the strike mechanism behind the faceplate before tightening the mounting screws.  If vertical alignment is off, reposition the face plate. Check the locking cam spring to insure it is moving the locking cam into the locked position(Non-Fail-Safe)or the unlocked position (Fail-Safe) Check the solenoid assembly to insure the solenoid plunger is moving freely. Improper indication (LCM, LBM, LBMLCM or LCBDM) Check wiring Check latch bolt or dead bolt for proper engagement with the switch tripper. Check switch actuator arm, re-bend if necessary. Check continuity of indication switches, common to normally open, common to normally closed. Solenoid plunger binding in solenoid. (Plunger will not extract or retract) Check alignment between solenoid plunger and cam. Strike is not re-locking or is not unlocking. Check for proper alignment between strike keeper and bolt, realign face plate if necessary.  The keeper may not be returning to the fully locked position.  Check the strike with the door open, if the strike re-locks check the horizontal alignment between the strike keeper and the latch bolt.  there is a 3/16" horizontal adjustment between the strike assembly and the face plate.  If vertical alignment is off reposition the face plate. Check the locking cam spring to insure it is moving the locking cam into the locking position (no-fail-safe) or the unlocking position (fail-safe). Check the solenoid assembly to insure the solenoid plunger. Buzzing solenoid Realign solenoid on AC strikes. Replace rectifier on DC strikes. BUY PRODUCT NOW !!