[W126 Coupe] heater/AC blower motor failure ??

[Rick Granlund]

Hi Dick-
  	Thanks for the prompt response.  I have tried to locate the 30 A. 
foil fuse but can' seem find it on my 560SEC. I have attached a scan of 
the diagram of my firewall in that area.  Could you tell me where/what 
to look for? I appreciate it.
Thanks
Rick

Dick Spellman wrote:

> Hi Rick:

> 

> Please check the separate 30amp foil fuse in the external holder up near 

> your brake vacuum booster first.  It's bolted just to the inside of the 

> engine firewall.

> 

> Dick



> Rick Granlund wrote:

>> HI-

>>   My '89 560SEC had been sitting for almost a month due to an extended 

>> business trip.  When I took the car for a much needed jaunt up the 

>> interstate I noticed that the AC didn't seem to work.  When I returned 

>> home I checked to see if the compressor was turning,,,and it was, but 

>> the fan (blower) was not blowing air...in any mode. i.e. fast, slow or 

>> automatic.  It is not a blown fuse because the blower motor is on the 

>> same circuit as other things that work properly.  When I select 

>> 'economy' the compressor turns off, so the climate control seems to 

>> work properly.  I assume it is either the blower resistor pack or the 

>> blower motor itself.

>>   On these cars, does a resistor pack failure put the blower into 

>> 'fast' as default?  Does anyone have the wiring diagrams and a 

>> troubleshooting procedure?  I think I should check the blower motor 

>> and/or the resistor pack with an outside +12 source to see if they 

>> operate but I don't know where it is or how to get to it.

>>   I would appreciate someone emailing me the procedure for getting at 

>> the blower motor and resistor pack and checking them.

>> Thanks for all your help in advance

>> Rick

>> rickard681 at cox.net

>> '88 300CE (the baby coupe), '89 560SEC

>> The MB Coupes Website!

>> W126 SEC Mailing List

>> Postings remain property of MB Coupes, L.L.C.

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