Troubleshooting Reference••Maximize TV signal strength by using a better antenna.Use a shielded antenna cable where possible.Try a different TV. Different models vary considerably intheir susceptibility to interference.Troubleshooting ReferenceIf'.. WARNING: Electric shock hazard~ Do not remove the cover of the Duracell® Powerpack ordisassemble the Duracell® Powerpack except to replace theinternal battery or 250 A fuse. The Duracell® Powerpack does notcontain any internal user-serviceable parts and attempting toservice the unit yourself could result in electrical shock or bum.Table 5-1 Troubleshooting referenceProblemAC appliancewill notoperate;audible alarmis notsounding.Overloadshutdown36Possible CauseAC appliance ratedmore than 480 W, thesafety overload hastripped.AC appliance is ratedless than 480 W, highstarting surge hastripped the safetyoverload.Appliance powerrequirements exceedthe capability of theDuracell® Powerpack.SolutionUse an AC appliance with a powerrating less than 480 W.AC appliance may exceed the unit'ssurge capability. Use an ACappliance with a starting surgewithin the Duracell® Powerpacksurge rating.Unplug the appliance and confirmthat the appliance's powerrequirement is 480 W or less beforeattempting to restart the appliance.975-0339-01-01