
TROUBLESHOOTING GUIDE (continued)
SYMPTOM
1.
“AC POWER”lightOff.
>
.. Digitalcommunicatormes-
sagenotbeingreceived.
L Doesnotarmproperly.
L
VIBTA-20doesn’trespondto
keystrokesonkeypad.
CONTROL
POSSIBLECAUSE
la. InterruptedAC powersupply.
2a. VISTA-20in TESTmode.
2b. Telephoneconnectionnotsecure.
2c. Digitalcommunicatormalfunctioning.
2d. Telephonenumberin programneeds
prefixor accesscode.
2e. Telephonecall to centralmonitoring
stationrequiresoperatorassistance.
3a. Readylightnoton.
4a. “CC or “MODEMCOMM”displayed.
4b. “all”or “SystemBusy”displayed.
4c. ‘334”or “E8”,or ‘se&up Error displayed.
a Keypadaddresssettingincorrect.
SMOKE DETECTOR
REMEDY
la. Checktransformerconnectionand
Powerlinecircuitbreaker.
2a. RemovefkomTESTmode.
2b. &ack d
CCOIIkeCtiOTM.
2c.
Checkwitha difTerentVISTA-20.
2d. Programprefixor accesscodeintothe
VISTA-20.
2e. VISTA-20 systemcannotworkinthis
situation.
3a. Checkforfaultedzonesandmakeintact,
or use Bypassarming,if desired.
4a. Systemiain
communication with down-
loaderat centralstation.Waituntil
downloadsessionis finished.
4b. Systemhasjust beenpoweredandis iu
itsone
minuteinitialization.To bypass
thistime,press‘#’ + ‘O’.
4c. Morezoneshave beenprogrammedthan
thezoneexpansionmodulescanhandle.
Deletesomezonesor usea higher
capabilityRF receiver.
4d. Keypadsmustbe setfor address31 (non-
addreaaablemode).
1.
Detector_ no ap.
parentreaeon.
2. Detector’ssirensounds.
la. Dust,dirtin sensingchamber.
lb. Improperlocation.
lC. unit
malfunctioning.
2a. Unitnotreceivingrequiredpower.
2b, Unit
XdfildiOIliIE
1s. Cleanunit’s sensing chamber with
vacuum cleaner per unit’s instructions.
lb. Seeunit’sinstructionsforlocationsto
avoid.Belocateas necessary.
lc. Replacedetector.
2s. Checkforproperinstallationof battery.
Tkynewbattery.
2b. R.edacedetector.
-105-
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