– 43 –Trouble Conditions (cont’d)Words or letters in parentheses ( ) are those that are displayed on Fixed-Word Displaykeypads.Other TroubleDisplays* Any “beeping” thataccompanies atrouble display canbe stopped bydepressing any keyon the keypad or byentering an OFFsequence (code +OFF)** Not all systems usewireless sensors.COMM. FAILURE Indicates that a failure has occurred in(or FC) the telephone communication portion ofyour system.CALL FOR SERVICE.SYSTEM LO BAT Indicates that a low system battery(or BAT with no condition exists. Display iszone No.) accompanied by "beeping"* at thekeypad. If this condition persists formore than one day (with AC present),CALL FOR SERVICE.LO BAT Indicates that there is a low battery+ zone descriptor condition in the wireless transmitter**(or BAT with number displayed (00 is RF keypad).zone No.) Accompanied by a single "beep"* (aboutonce every 40 seconds) at the keypad.Either replace the battery yourself, orCALL FOR SERVICE. If the battery isnot replaced within 30 days, a CHECKdisplay may occur.Rcvr Jam Wireless part of the system isexperiencing(or CHECK 90) RF interference which may impedereception from wireless sensors.**MODEM COMM(or CC)Indicates that the control is on-line withthe Central Monitoring Station's remotecomputer.The control will not operate while on-line.Wait a few minutes — the display shoulddisappear.BELL FAILURE Indicates that the wiring connection to(or CHECK 70) the external sounder is at fault (open orshorted). Accompanied by “beeping” atthe keypad. CALL FOR SERVICE.