Victron energy MPPT 150/70 Manual page 3

6. Operation ............................................................................................................................ 38
6.1. Start up ..................................................................................................................... 38
6.2. Battery charging ........................................................................................................... 38
6.3. Automatic equalization .................................................................................................... 39
6.4. Lithium batteries ........................................................................................................... 39
6.5. Shutdown and restart procedure ........................................................................................ 39
6.6. Maintenance procedure ................................................................................................... 40
7. Monitoring ........................................................................................................................... 41
7.1. LED indications ............................................................................................................ 41
7.2. Error codes ................................................................................................................. 42
7.3. Monitoring via the VictronConnect app ................................................................................. 42
7.3.1. VictronConnect app status screen ............................................................................ 42
7.3.2. VictronConnect app history screen ............................................................................ 43
7.3.3. VictronConnect app error reporting ........................................................................... 44
7.4. Monitoring via a GX device and VRM ................................................................................... 44
8. Troubleshooting .................................................................................................................... 46
8.1. Solar charger is damaged ................................................................................................ 46
8.2. Solar charger is unresponsive ........................................................................................... 46
8.3. Solar charger is off ........................................................................................................ 47
8.3.1. PV voltage too low .............................................................................................. 47
8.3.2. Settings being edited on an external display ................................................................. 48
8.3.3. Disabled in the settings ......................................................................................... 49
8.3.4. Disabled by remote or BMS .................................................................................... 49
8.3.5. Low lithium battery temperature ............................................................................... 49
8.4. Solar charger is externally controlled ................................................................................... 49
8.5. Batteries are not charged ................................................................................................. 50
8.5.1. Battery is full ..................................................................................................... 50
8.5.2. Battery not connected .......................................................................................... 51
8.5.3. Reverse battery polarity ........................................................................................ 52
8.5.4. Battery settings too low ......................................................................................... 52
8.5.5. PV voltage too high ............................................................................................. 53
8.5.6. Reverse PV polarity ............................................................................................. 53
8.6. Batteries are undercharged .............................................................................................. 54
8.6.1. Insufficient solar supply ......................................................................................... 54
8.6.2. DC load too high ................................................................................................ 55
8.6.3. Battery cable voltage drop ..................................................................................... 55
8.6.4. Temperature compensation setting incorrect ................................................................ 56
8.6.5. Temperature difference between solar charger and battery ................................................ 56
8.7. Batteries are overcharged ................................................................................................ 57
8.7.1. Battery voltage setting too high ................................................................................ 57
8.7.2. Battery charge voltage settings too high ...................................................................... 57
8.7.3. Battery unable to deal with equalisation ...................................................................... 57
8.7.4. Battery old, faulty or undersized ............................................................................... 57
8.8. Solar charger not achieving full output .................................................................................. 58
8.8.1. PV yield lower than expected .................................................................................. 58
8.8.2. Maximum output power relates to battery voltage ........................................................... 59
8.8.3. Temperature above 40°C ....................................................................................... 60
8.8.4. PV connections burned or melted ............................................................................. 60
8.9. Communication Issues .................................................................................................... 60
8.9.1. Bluetooth ......................................................................................................... 60
8.9.2. VE.Direct port .................................................................................................... 61
8.9.3. VE.Smart Networking ........................................................................................... 61
8.10. Miscellaneous issues .................................................................................................... 62
8.10.1. Unable to operate as a DC-DC charger or power supply ................................................. 62
8.10.2. Interrupted firmware update .................................................................................. 62
8.10.3. Ground current ................................................................................................. 62
8.10.4. Programmable relay issues ................................................................................... 62
8.10.5. PV Short relay reset procedure .............................................................................. 62
8.11. Error code overview ...................................................................................................... 64
8.11.1. Error 1 - Battery temperature too high ....................................................................... 64
8.11.2. Error 2 - Battery voltage too high ............................................................................. 64
8.11.3. Error 17 - Solar charger overheated despite reduced output current .................................... 64
8.11.4. Error 18 - Solar charger over-current ........................................................................ 64
8.11.5. Error 20 - Maximum bulk time exceeded .................................................................... 64
8.11.6. Error 21 - Current sensor issue .............................................................................. 64
8.11.7. Error 26 - Terminal overheated ............................................................................... 64
MPPT solar charger manual