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Old 03-11-2007, 05:16 PM
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arkie arkie is offline
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Join Date: Sep 2003
Location: Marion, Arkansas (near Memphis, TN)
Posts: 245
I'm working through a similar issue with my W116 300SD. It actually ended up having a bad blower (actually very easy to replace on this chassis, don't know about the W123), but I only get blower activity on the Defrost setting (which I think overrides the servo control of the blower speeds) and I don't get anything but warm air so I'm pretty sure it is servo related. If you can't get your blower to come on at all, I'm thinking you may have a bad pushbutton control, as I have seen the button contacts go bad on a W123 before.
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