intermittent blower - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 05-03-2004, 07:28 PM Thread Starter
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intermittent blower

Hi all. We are new to the forum and new to Mercedes. We recently purchased a 420 SEL and the heat and air conditioning were running/blowing fine. Yesterday it stopped blowing for no apparent reason. We checked fuse five and what we believe - though are not certain is the blower fuse. Today it blew intermittently. The air blows cold and hot just fine when it blows. Any help you all can provide would be greatly appreciated...

thanks..the butlers
Michael and Traci
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post #2 of 3 (permalink) Old 10-17-2004, 11:31 AM
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RE: intermittent blower

Hi, my wife just brought a 88 300se. She had the same problem. The mechanic had to replace the blower regulator. Good luck, it's not an easy job to replace!
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post #3 of 3 (permalink) Old 10-17-2004, 12:20 PM
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RE: intermittent blower

Welcome to the forum – I’d loose the names in your sig., I know it’s hard to believe but there are crazy people on the ‘net. [:0]

Your blower motor brushes are more than likely worn – it could also be corroded/loose wires or connections. As noted above it could also be a bad speed control circuit module.

Post in the w126 forum for more answers.
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