I have a '92 300E and today the A/C blower does not seem to work, let me
explain more.

When driving the vents give me A/C at what seems to be the low speed.
But if I stop no air is comming out. Push button unit seems ok, the compressor. kicks in when I push the button.

The vehicle has sat for 2 months, when last used the blower worked ok.

I seem to remember starting the car about a mth ago in the garage.

I hit the A/C control unit & heard a pop sound. I did today check the fuse next to the large
fuse box, & the blower fuse looks ok. ( though I guess there could be a hair line
crack in it I may have missed, will look again tomorrow )

Anyway past the fuse, are there any basic fuses, relays I can change or need to check out etc.

What is weird it I do have low speed A/C as mentioned when driving, but not
at idle.

Would this fact indicate a vaccum issue. Higher reving motor pushing more vac so some blower, at idle
very little pressure to vac system so no air ??

Thanks