7.1。Troubleshooting and support ............................................................................................. 48 7.2.太阳能充电器没有反应症......................................................................................................................................................................................................................................................................................................................................................... 48 7.3。Solar charger is off ........................................................................................................ 48 7.3.1.PV电压太低......................................................................................................................................................................................................................................................................................... 49 7.3.2。PV voltage too low .............................................................................................. 50 7.3.3.Reverse PV polarity ............................................................................................. 50 7.3.4.安全继电器关闭。............................................................................................................................................................................................................................................................................................................................................................................................................................................. 51 7.4。太阳能充电器外部控制................................................................................................................................................................................................................................................................................................................................................................................................................... 51 7.5。Batteries are not being charged ......................................................................................... 53 7.5.1.Battery is full ..................................................................................................... 53 7.5.2.Battery not connected .......................................................................................... 54 7.5.3.Battery settings too low ......................................................................................... 55 7.5.4.Reverse battery polarity ........................................................................................ 55 7.5.5.Reverse PV polarity ............................................................................................. 55 7.6.电池充电不足..................................................................................................................................................................................................................................................................................... 55 7.6.1。Insufficient solar ................................................................................................. 56 7.6.2.太多的直流负载......................................................................................................................................................................................................................................................................................................................................................................................................... 56 7.6.3。Battery cable voltage drop ..................................................................................... 56 7.6.4.Wrong temperature compensation setting ................................................................... 57 7.7.电池充电................................................................................................................................................................................................. 57 7.7.1。Battery charge voltages too high .............................................................................. 57 7.7.2.电池无法应对均衡........................................................................................................................................................................................................................................... 57 7.7.3。Battery old or faulty ............................................................................................. 57 7.8.PV problems ............................................................................................................... 58 7.8.1.PV yield less than expected .................................................................................... 58 7.8.2.未达到全额输出................................................................................................................................................................... 59 7.8.3。Mixed PV panel types ........................................................................................... 59 7.8.4.MC4 connectors wrongly connected .......................................................................... 59 7.8.5.PV connections burned or melted ............................................................................. 59 7.8.6.Optimisers cannot be used ..................................................................................... 60 7.8.7.Ground current .................................................................................................. 60 7.8.8.PV voltage too high ............................................................................................. 60 7.9.Communication problems ................................................................................................ 60 7.9.1.VictronConnect app ............................................................................................. 60 7.9.2.Bluetooth ......................................................................................................... 60 7.9.3.VE.Direct port .................................................................................................... 61 7.9.4.VE.Smart communication ...................................................................................... 61 7.10.Error code overview ..................................................................................................... 62