jessicadavis
New Member
I am at a total loss. I have been running my whole system with minimal errors for nearly two years at this point. But all of a sudden I'm experiencing some very erratic behavior, seemingly surrounding my charge controller.
This is my setup:
- (4) 100Ah SOK Batteries, wired in series-parallel for a 24V system
- Victron MPPT 150/45
- Victron MultiPlus 24/3000/70-50 120V
- Victron SmartShunt 500A/50mV
- Victron BatteryProtect and also a Victron Balancer
- Also worth mentioning: Everything is connected via VE Smart networking
This is my problem:
A few weeks ago I started getting an occasional error message on my MPPT (#26 Charger Terminal Overheat). I've checked all connections. Everything is secure, no wires feel warm, everything appears to be totally fine. The error would always go away and things go right back to normal. Figured it was just a fluke.
Then, about a week ago, the MPPT started being very strange. It would be on bulk but bringing in 0w, and then it would switch to Absorption WAY before it was supposed to, it would stay on Absorption long past the Absorption time I have set, then it would switch to Float even though all the devices are reading a low voltage, and then sometimes all my devices are matching voltage, but the MPPT is reading like 3V higher than everything else. It's just all over the place.
I've searched the forums for all these individual problems and tried various solutions. I've checked connections, I've changed settings, I've replaced a fuse that was not making a clean connection. And every time I try something, it appears to be working for a few hours or even a couple days at a time. But then the problems come right back.
Any suggestions??
Below are some pics of my setup in the app - MPPT settings and history - including one shot of the MPPT showing a MUCH higher voltage than everything else.
This is my setup:
- (4) 100Ah SOK Batteries, wired in series-parallel for a 24V system
- Victron MPPT 150/45
- Victron MultiPlus 24/3000/70-50 120V
- Victron SmartShunt 500A/50mV
- Victron BatteryProtect and also a Victron Balancer
- Also worth mentioning: Everything is connected via VE Smart networking
This is my problem:
A few weeks ago I started getting an occasional error message on my MPPT (#26 Charger Terminal Overheat). I've checked all connections. Everything is secure, no wires feel warm, everything appears to be totally fine. The error would always go away and things go right back to normal. Figured it was just a fluke.
Then, about a week ago, the MPPT started being very strange. It would be on bulk but bringing in 0w, and then it would switch to Absorption WAY before it was supposed to, it would stay on Absorption long past the Absorption time I have set, then it would switch to Float even though all the devices are reading a low voltage, and then sometimes all my devices are matching voltage, but the MPPT is reading like 3V higher than everything else. It's just all over the place.
I've searched the forums for all these individual problems and tried various solutions. I've checked connections, I've changed settings, I've replaced a fuse that was not making a clean connection. And every time I try something, it appears to be working for a few hours or even a couple days at a time. But then the problems come right back.
Any suggestions??
Below are some pics of my setup in the app - MPPT settings and history - including one shot of the MPPT showing a MUCH higher voltage than everything else.