– 60 –Trouble ConditionsTypical Trouble DisplaysThe word CHECK or TRBL on the Keypad's display, accompanied bya rapid "beeping" at the Keypad, indicates that there is a troublecondition in the system.To silence the beeping sound for trouble conditions, press any key.• A display of “CHECK” or “TRBL” accompanied by a display of"CALL SERVICE" indicates that a problem exists with thesystem that eliminates some of the protection. CALL FORSERVICE IMMEDIATELY.• A display of “CHECK” or “TRBL" accompanied by a display ofone or more zone descriptors indicates that a problem exists withthose zone(s)*. First, determine if the zone(s) displayed are intactand make them so if they are not. If the problem has beencorrected, the display of the zone descriptor(s) and “CHECK” or“TRBL” should disappear. If not, key an OFF sequence (Codeplus OFF) to clear the display. If the display persists, CALL FORSERVICE IMMEDIATELY.• A display of “CHECK” or “TRBL” accompanied by a numericdisplay of “6XX,” where XX = 01-32, indicates a trouble on asupervised relay (corresponding relay number 01-32).• A display of “CHECK” or “TRBL” accompanied by a numericdisplay of “8XX,” where XX = 00-31, indicates a trouble on aperipheral device (connected to the panel’s keypad terminals) of acorresponding device address (00-31).