Hi,
I've had an IP67 25A charger connected to the house batteries in my camper van for 2 years now and it's always worked great. However, today I reconnected it after using the batteries and the charger doesn't seem to be sending any current output either in charger or power supply mode.
Batteries were at 12.4V before connecting and are remaining there. The app is showing the same voltage of 12.4 and a current of 0 Amp but says it is charging. Starts in bulk charge mode when I connect and then moves to absorption phase within a few minutes despite the voltage remaining unchanged and the output staying at 0 Amps.
I stared at the app display for a while and it occasionally shows output of 25 Amp just for a second then immediately drops back to 0. I have tried turning on the vehicle engine which also charged the batteries and this was successful at charging them with the voltage going up immediately so the batteries are accepting charge normally.
The charger was working normally just a few days ago. The only thing different I did in between was connect the charger to a new phone via the app but I can't imagine that doing anything.
Any thoughts? Is the charger dead? I don't believe there is any fuse I check. Thanks.