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Update for future people that find this thread.. It ended up being the BMS for my APX battery that needed changing. Growatt had a recall for the batch of BMS, mine came from and i got a new unit free of charge and gave my other BMS back. Since then, everything has worked as expected.

HI I have tried to recommended cleaning procedure, taking the plugs off and so on, but sadly this made no difference here. My problem is a bit different though, my setup never worked from new, when i power on the whole setup the battery turns on for a short while but then clicks and the...

Hi Just bought and installed a MOD-10KTL3-XH and an APX BMS and 2 batteries. I am getting the exact same code "Warncode 217(01)" I have doublechecked everything and even remade the cable from scratch to rule out a break in the first one but still the error persists. This is how i connected...