Hi guys, I'm having a issue with a daikin super inverter. It keeps showing a e4 fault. I have decanted the unit and charged by weight. It was all ok. I have checked my pressure transducers and they are fine. I have also changed the board ( swapped from a redundant unit)
Whenever I arrive it is in a e4 fault (low pressure) when I reset the unit it works fine but the condenser freezes up very quickly.

I'm guessing I have a restriction or a faulty eev.

Just like to know your thoughts.

Thanks