First Alert FA848C Installation And Setup Manual page 91

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1. LED or LCD: Keypad
display not lit.
2. LED KP: AC/LB light
OFF
LCD KP: AC LOSS
3. LED KP: AC/LB light
slowly blinking
LCD KP: LOW BAT
4. LED KP: ARM light
slowly blinking
LCD KP: COMM
5. LED KP: ZONE light
ON & READY light OFF
LCD KP: NOT READY:
ZN # & SYSTEM NOT
READY
6. Siren/Speaker does not
sound
For more complicated problems, consult our Technical Support at (1-800) 538-5585.
SYMPTOM
1a. AC & DC power out
1b. Keypad not powered
2a. Primary AC power out
2b. Faulty keypad
3a. DC power out
3b. Low battery voltage
4a. Failure to communicate
4b. Faulty panel/dialer
4c. Faulty telephone lines
FAILURE
5a. Zone faulted; system not
ready
5b. Faulty keypad
5c. Faulty panel
6a. Faulty Siren/Speaker
6b. Faulty Wiring
6c. Faulty Panel/Bell Output
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POSSIBLE CAUSE
w/Central Station
S E C T I O N
REMEDY
1a. Check transformer & battery
connection; check AC input & batt.
volt. (w/transformer disconnected).
1b. Check term. 15(+) & 12(-) for 12VDC.
2a. Check transformer connection; check
AC input voltage.
2b. Replace keypad
3a. Check battery connections; check
battery voltage (w/transformer
disconnected).
3b. Same as 3A except volt. < 11 VDC;
let battery charge; replace battery.
4a. Telephone lines cut or disconnected;
CS information misprogrammed.
4b. Replace panel.
4c. Consult local telephone company.
5a. Check loop wiring for open/short &
repair: check EOL resistor for open or
wrong value.
5b. Replace keypad.
5c. Check zone terminal voltage for
3.3VDC; bypass zone temporarily;
replace panel.
6a. Connect 12 VDC to siren/speaker; if
no sound is produced, replace siren/
speaker.
6b. Check wiring for an open or short
circuit and replace wiring if necessary.
6c. Check terminals 22 (+) & 23 (-) for
12VDC when panel is in alarm (if
programmed for bell output). If no
voltage is measured, replace panel.
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