Diagnosing inop blower
I went to use the A/C in my '07 328i the other day only to discover the blower would not run. It was working last week when I had to defog the windshield, now nothing on any setting or level.
I checked the fuse (40 Amp, fuse #67) and it is intact, not open.
I'm trying to determine whether the problem could be with the resistor pack, control module or the motor itself. In my experience with other cars the resistor is only used for lower fan settings and bypassed on the highest setting, thus and easy diagnosis that the resistor is at fault. Wondering if that is also the case with the e90 fan ? My fan doesn't come on at any setting so I'm wondering if I can discount the resistor.
Seeking comments or suggestions before I delve into the job of pulling the fan out.
Thanks.
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