Specifications

12
Testing and Troubleshooting
Use the table below to determine the most probable cause of a fault condition and
perform any suggested tests which are described in detail in the following pages.
Symptom Possibly Cause/Remedy
Red and Green LEDs do not flash 3
times when power is applied.
Power supply short-circuited or wrongly
connected or faulty; Check PSU (page 13)
Red and Green LEDs flash
continuously.
Power Supply is overloaded;
Check PSU (page 13)
Red and Green LEDs flash when
attempting to operate lock-release
Fail-secure Lock release output is short-
circuited or of an incorrect rating; Check
lock-release output (page 13)
Lock release does not operate when
Test Button is pressed.
Check slide switch is in position ‘RUN’;
Check lock-release output (page 13)
Lock release does not operate when
Egress Button is operated.
Check slide switch is in position ‘RUN’;
Test by applying a short-circuit directly to
the ‘TRIG’ terminals; Check connections to
Egress button.
Lock release does not operate when
code is entered.
Check slide switch is in position ‘RUN’;
Check 108plus is correctly programmed;
Restore to Factory Settings (page 7);
Test keypad and connections (page 14)
Lock release is permanently active
‘TRIG’ terminals are short-circuited;
Temporarily remove connections and re-
test unit.
Lock release operates in reverse
Incorrect output has been used; Transpose
connections between Fail-safe and Fail-
secure outputs.
Alarm output does not operate
Check slide switch is in position ‘RUN’;
Ensure unit is correctly programmed
(pages 9 & 10 )
Test Alarm output (page 14)