I have used my multiplus 12 500 20 for over a year, it's been fine.
A week ago our leisure batteries dropped to 35% and we used shore power to top up. The inverter got too hot and turned off a few times.
Since then the inverter has worked fine, we've charged our laptop several times using 230v.
Today one of our consumer unit breakers tripped, and when turned back on, the inverter seems to be malfunctioning. If I turn it off and back on with no load, the green inverter lights comes on. I can plug in my tester plug to the 230 socket, no problems. If I then plug in the power supply for my laptop (without the laptop attached) the multiplus flashes the alarm light or just turns off.
I have tried checking the sockets-fine, the breaker from leisure batteries to inverter - fine, and plugging in a battery charger to the socket - fine
The multiplus also makes a crackling or grinding sound before it shows the alarm sometimes.
Can I check or do anything else? Or do I need a new one? I have a multimeter but don't know how to use it! I'm in France...
Thanks!
