Terofire Products
6
Fault Finding
Front panel buttons not working.
To activate the front panel buttons turn the keyswitch in the top left of
the panel through 90° to the ON position.
Fault lamp and zone fault lamp flashing, internal buzzer sounding.
Faults monitored are:
• Open circuits on the sense zone wiring.
• Short circuits on the sense zone wiring.
• Detector head removal
Check all detectors and call points on the sense zone indicated. Check
wiring is as in example diagrams and ensure the end of line monitor is
a 3k3 resistor or an active end of line device. If an active end of line
device is being used, check that the capacitor is fitted at the sense
zone terminals.
Fault lamp flashing, power lamp lit, internal buzzer sounding.
Faults monitored are:
• Open circuits on the alarm zone wiring.
• Short circuits on the alarm zone wiring.
• Blown alarm fuses.
• Blown 28V auxiliary supply fuse.
Check relevant fuses. If blown replace only with identical parts. Check
alarm zone wiring is as in example diagrams and ensure the end of line
monitor is a 10k resistor.
Fault lamp flashing, power lamp off, internal buzzer sounding.
Faults monitored are:
• Blown battery fuse.
• Battery supply not present.
• Batteries damaged or not fully charged.
• Blown mains fuse.
• Mains supply not present.
Check relevant fuses. If blown replace only with identical parts.
Ensure batteries are connected correctly and battery leads are secure.
If no other faults can be found, and the batteries are new, it may be that
they require charging. If this is the case, the fault will disappear when
the batteries reach full charge.