Blue Smart Charger 24V/8A not charging & connecting

Hello all,

I’m trying to charge my LiFePo4 100Ah 24V battery with the Blue Smart Charger IP65 24V/8A.
It has worked before but now it will not charge at all. After plugging in the charger it will keep blinking the test-LED.

None of the mode LEDs is on.
When I try to connect through the VictronConnect app, it will show up but I cannot connect nor can I change the PIN. When connecting or changing the pin the LEDs on the charger will blink in a certain pattern. The app will display ‘Unable to connect’

Also with no battery connected it will not connect to the app.

I did also try long pressing (±3 secs) the mode button; the blue mode lights and orange float, abs, bulk and test will blink quickly alternated of eachother.

Does anyone know what the issue might be?
Thanks in advance!

For future reference: I ended up getting a replacement from Victron because of the faulty unit.