244.2 TroubleshootingProblem Possible Cause RemedyMain Switch Alarm Front panel switch in the STOPpositionCharge will start when the switchis set to STARTInlet Filter Alarm Air inlet filter blocked Clean the filterLow Mains Alarm AC mains supply is low or powermodules may be overloadedReplace the faulty powermodule(s)Non-Urgent Rectifier Fail Alarm Faulty power modules areaffecting the ability of thecharger to charge the batteryReplace the faulty powermodule(s)Rectifier Fan Fail Faulty power module fan Replace the faulty power moduleRectifier Over Temperature Power module is overheating Check air inlet filter is notblocked, check the charger isinstalled without any obstructionsto air inlet and outletConfiguration Error Charger cannot provide thetarget output currentCheck the controllerconfiguration matches thequantity of power modulesinstalled, add power module ifnecessaryOutput Fuse Blown output fuse Check battery polarity, replaceblown fuseNo Output Current Charger failing to provide therequired currentCheck the operator has not beenunplugging the battery midcharge cycle or charge profilehas allowed the battery currentfall below 0.7AMonitor ADC Fail Faulty MPC35 controller module Replace the MPC35 controllermodule ensuring the replacementis correctly configuredOver Discharged Battery Battery is below 1.9 V/C atconnection but recovers within30 second of chargeThis happens typically due to thebattery being quickly unpluggedfrom the truck and plugged intothe charger without allowing thebattery to recover. Regularoccurrences might needinvestigation