Open the door and re-energize the electric strike. If the electric strike operates properly with the door held open, the lockset may be pre-loading or binding the keeper of the electric strike. "Pre-load" is any pressure applied to the keeper of the electric strike that causes it to bind. The horizontal relationship between the lockset and the electric strike will have to be adjusted to eliminate the binding between the bolt of the lock and the electric strike keeper.
Check that the proper function is being monitored. Next, check for proper engagement of mechanism with switch. Finally, check all wiring.
Examine the power supply or transformer to verify that the output voltage is at the listed rating. Verify that the power source can handle the current draw of all electrical components in line with the power source. Verify that the power wires leading to the electric strike are of a large enough gauges to handle the current requirements. Note: drop is higher on smaller gauge. Using a multimeter, verify that the input voltage is within the recommended limits (+-10%). Confirm that the input voltage at the installation stie is DC or properly rectified AC. Verify that all peripheral devices such as bridge rectifiers, SMART-Pac III, buzzers, LEDs, etc. are properly connected. Check that the switch, key pad, etc., meet the voltage requirements for the system.
Check solenoid operation to see if it is fully actuating. Next, check to see if the keeper is returning fully. Finally, verify that there is no debris interfering wiht any of the mechanics.