– 76 –Troubleshooting GuideDuring operation of your FOCUS CADET security system, your operatingpanel may display error or trouble messages, which restrict systemoperation. To display additional information regarding trouble or errormessages, press the "Help" selector button “?”. The chart below alsoprovides a list of these messages, a brief explanation and the required actionto resolve the problem.Note: If a system trouble condition or error message persists, contact yourADT Service Representative for assistance.Trouble or Error Display Description ActionSystem has battery power only.Cannot turn on! AC power isoff.AC electrical powerhas been interruptedor disconnected.1. Check the status of ACpower throughout thefacility.2. Check that the CentralControl Unit transformer isplugged into an ACelectrical outlet.3. Check the circuit breakerfor the Central Control UnitAC electrical outlet.Cannot turn on! Battery poweris low.Your system’s standbybattery is low.If AC power has recentlybeen interrupted ordisconnected, it will beseveral hours before thestandby battery re-charges.If AC power has not beeninterrupted ordisconnected, thestandby battery may bedefective.4. Check availability of ACpower (to re-charge thestandby battery).5. Check that the CentralControl Unit transformer isplugged into an ACelectrical outlet.6. Check the circuit breakerfor the Central Control UnitAC electrical outlet.