fault after replacing PDM

[EVBrumby]

@isak
I have swapped my 3.3kw pdm with a 6.6 from AZEO. tested it. worked fine. then did a rookie mistake and accidantly conncted my HV heater to the A/C terminals but reversed polarity. since then it seems like precharge isn't happening. get 44v DC to DC code error on inverter. this is the report from the console:
and DTCs:
the f/s charger relay error codeis a code I carry over from before and I suspect it's related to my YAste Can Bridge comunication issue.
I can try and install my old 3.3 PDM and see if it's a PDM issue or a contactore or precharge resistor issue?
before PDM swap everything was working fine. just had this charger relay code that only affected regen braking. whats your thoughts? cheers