Why does my A/C fan blow only some of the time? on 1999 Mercedes-Benz C230

One never knows when it will cease to blow. No reason. Just stops blowing when driving or starts a few minutes after the car starts. Weather does not seem to be a cause nor does humidity. Happens on heater as well as AC.

by in Wilmington, NC on October 21, 2013
2 answers 3 comments
ANSWER by , October 21, 2013
check for corrosion at the resistor
COMMENT by , October 21, 2013
Thanks...where is the resistor?
COMMENT by , October 21, 2013
Blower motor resistor is located by the blower motor itself.
COMMENT by , October 22, 2013
Thanks. I'll tell the mechanic. You have been very helpful.
ANSWER by , October 22, 2013
also ck wiring at plug yjey tend to melt