We let it sit a day and it is working again in all positions. I am thinking worn brushes. Any other ideas?
On 1/14/07, Marshall Booth <[EMAIL PROTECTED]> wrote:
andrew strasfogel wrote: > The blower motor on her 1985 300 CD has ceased to operate in one fell > swoop. I replaced the fuse, but this had no effect. Before I > purchase a replacement motor, I should ask whether there is a relay > that might be at fault rather than the motor itself. Anybody? The two most common causes of what you describe (after blown fuse in the aux fuse box if so equipped) are seized blower bearings or worn brushes. If these are both fine, then the blower control box may have failed (although that's rather rare). Does the blower work when you engage defrost? Try tapping it. Does moving the ignition key back from position II toward position I result in the blower motor engaging? Ignition switch failures were a known cause of the blower not working. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
