MPPT solar charger manual 6. Operation ............................................................................................................................ 37 6.1. Start up ..................................................................................................................... 37 6.2. Battery charging ........................................................................................................... 37 6.3. Automatic equalization .................................................................................................... 38 6.4. Lithium batteries ...........................................................................................................
38 6.5. Shutdown and restart procedure ........................................................................................ 38 6.6. Maintenance procedure ................................................................................................... 39 7. Monitoring ........................................................................................................................... 40 7.1. LED indications ............................................................................................................ 40 7.2. Error codes ................................................................................................................. 41 7.3.
Monitoring via the VictronConnect app ................................................................................. 41 7.3.1. VictronConnect app status screen ............................................................................ 41 7.3.2. VictronConnect app history screen ............................................................................ 42 7.3.3. VictronConnect app error reporting ........................................................................... 43 7.4. Monitoring via a GX device and VRM ................................................................................... 43 8.
Troubleshooting .................................................................................................................... 45 8.1. Solar charger is damaged ................................................................................................ 45 8.2. Solar charger is unresponsive ........................................................................................... 45 8.3. Solar charger is off ........................................................................................................ 46 8.3.1. PV voltage too low .............................................................................................. 46 8.3.2.
Settings being edited on an external display ................................................................. 47 8.3.3. Disabled in the settings ......................................................................................... 48 8.3.4. Disabled by remote or BMS .................................................................................... 48 8.3.5. Low lithium battery temperature ............................................................................... 48 8.4. Solar charger is externally controlled ................................................................................... 48 8.5.
Batteries are not charged ................................................................................................. 49 8.5.1. Battery is full ..................................................................................................... 49 8.5.2. Battery not connected .......................................................................................... 50 8.5.3. Reverse battery polarity ........................................................................................ 51 8.5.4. Battery settings too low ......................................................................................... 51 8.5.5.
PV voltage too high ............................................................................................. 52 8.5.6. Reverse PV polarity ............................................................................................. 52 8.6. Batteries are undercharged .............................................................................................. 53 8.6.1. Insufficient solar supply ......................................................................................... 53 8.6.2. DC load too high ................................................................................................ 54 8.6.3.
Battery cable voltage drop ..................................................................................... 54 8.6.4. Temperature compensation setting incorrect ................................................................ 55 8.6.5. Temperature difference between solar charger and battery ................................................ 55 8.7. Batteries are overcharged ................................................................................................ 56 8.7.1. Battery voltage setting too high ................................................................................ 56 8.7.2.
Battery charge voltage settings too high ...................................................................... 56 8.7.3. Battery unable to deal with equalisation ...................................................................... 56 8.7.4. Battery old, faulty or undersized ............................................................................... 56 8.8. Solar charger not achieving full output .................................................................................. 57 8.8.1. PV yield lower than expected .................................................................................. 57 8.8.2.
Maximum output power relates to battery voltage ........................................................... 58 8.8.3. Temperature above 40°C ....................................................................................... 59 8.8.4. PV connections burned or melted ............................................................................. 59 8.9. Communication Issues .................................................................................................... 59 8.9.1. Bluetooth ......................................................................................................... 59 8.9.2.
VE.Direct port .................................................................................................... 60 8.9.3. VE.Smart Networking ........................................................................................... 60 8.10. Miscellaneous issues .................................................................................................... 61 8.10.1. Unable to operate as a DC-DC charger or power supply ................................................. 61 8.10.2. Interrupted firmware update .................................................................................. 61 8.10.3.
Ground current ................................................................................................. 61 8.10.4. Programmable relay issues ................................................................................... 61 8.10.5. PV Short relay reset procedure .............................................................................. 61 8.11. Error code overview ...................................................................................................... 63 8.11.1. Error 1 - Battery temperature too high ....................................................................... 63 8.11.2.
Error 2 - Battery voltage too high ............................................................................. 63 8.11.3. Error 17 - Solar charger overheated despite reduced output current .................................... 63 8.11.4. Error 18 - Solar charger over-current ........................................................................ 63 8.11.5. Error 20 - Maximum bulk time exceeded .................................................................... 63 8.11.6. Error 21 - Current sensor issue .............................................................................. 63 8.11.7.
Error 26 - Terminal overheated ............................................................................... 63