ADEMCO Vista-20HW Troubleshooting Guide download pdf (Page 87)

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Trouble Conditions

(See Troubleshooting Guide also)

General Information

The word “CHECK on the Keypad’s display, accompaniedby a rapid

“beeping”at the Keypad, indicatesthat there is a troubleconditionin the

system. The audible warning sound can be silencedby pressing any key.

Instructusersto callfor serviceimmediatelyupon seeinganyofthe following

messages.

“Check” and

● A display of “CHECK’ and one or more zone numbers indicatesthat

“Batte@’ Displays

a problemexistswiththe displayedzone(s)andrequiresattention.

Note: The control will sense a high resistance in the loops on hard-wired

zones 2-8 and display “CHECK” and the affected zone number when the

system is in the disarmed mode. It will not be possible to arm the system

as long as this condition exists (unless this zone is bypassed). If the

system is in the armed mode when the high resistance condition occurs,

this display will not appear, but will do so as soon as the system is

disarmed. Check the sensor or the loop wiring for the displayed zone.

When the problem has been corrected, the display can be cleared by

entering the OFF sequence (code plus OFF key) twice. *

● A display of “CHECK” and 09 indicates that communication between

control and a zone expander or wireless receiver is interrupted. Check the

wiring and DIP switch settings on the units.

. A display of ‘RAT’ (Fixed-wordkeypads)or ‘SYSTEM LO BAT’ (Alpha

keypads)with no zone number indicatesthatthe system’smainstandby

batteryis weak.

Telephone Line Failure

A display of “94” (Fixed-wordkeypads),or “Telco Fault” (Alphakeypads),

indicatesthat a monitoredtelephoneline (if programmedin field *2) has

been cut (or disconnected).“Dependingon howthe systemwas programmed,

the keypadmay alsoproducea troublesound,and the externalsoundermay

be activated(silenceby enteringinstallercodeplusOFF).

Power Failure

“ If there is no keypad display at all, and the POWER indicator (if

present) is not lit, operatingpowerfor the system has stoppedand the

systemis inoperative.

● If the message “AC LOSS” (Alpha keypads) or “NO AC” (Fixed-word

keypads)is displayed, and the POWER indicator (if present) is off,

the keypadis operatingonbatterypoweronly.

● If the battery standby capacity is used up during a prolonged AC

power outage, the control’sauxiliarypowerwill shut downto minimize

deepdischargeofthe battery.

Other Displays

Busy-Standby (dI). If this remainsdisplayedfor more than 1 minute,the

(FixedWord displaysare

systemis disabled.

in parentheses)

Modem Comm (CC) The system is in communicationwith the central

stationforchangeofftmctionorstatusverification.

Coxnm.Failure (FC) A communicationfailurehas occurred.

Open Circuit (OC) The keypadis notreceivingsignalsfromthe controland

sees an opencircuit.

Long Rng Trbl (bF) Back-upLRRcommunicationfailure.

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ADEMCO Vista-20HW Troubleshooting Guide Page 87

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