ML270 CarSoft and Aircon Faults

[91dm]

Hello,

Just looking into trying to fix the A/C in my ML (2004 W163).

Currently the A/C does absolutely nothing.

I read the codes in CarSoft 7.4 as below:

Module: AIRCO
MB nr: 163 820 55 89
Supplier: Hella

B100A
B1102
B1204
B1206
B1302

Can anyone advise what the fault codes are? Tried a search but didn't get anywhere and have only used carsoft once before.

Thanks