Re: [MBZ] Blower control unit

2009-02-21 Thread Archer

Does anyone know how to get the blower speed control unit and the
temperature control unit out of an '83 300D Turbo without taking out
the dash cover?

Gerry

I believe they just unplug from their socket.  They're very
replaceable, anyway.  No need to take out the dash or anything
like that.  The power resistors do get hot.  Not blued metal
case hot, though.
-- Jim

Unplug all wiring and check for continuity again.  This will make sure
it's not a wiring issue.
Luther
__
Thanks Jim, Luther.  Was afraid the units might be bolted in where I 
couldn't get to them.

Sincerely,
Gerry 
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Re: [MBZ] Blower control unit

2009-02-20 Thread Jim Cathey
Does anyone know how to get the blower speed control unit and the 
temperature control unit out of an '83 300D Turbo without taking out 
the dash cover?


I believe they just unplug from their socket.  They're very
replaceable, anyway.  No need to take out the dash or anything
like that.  The power resistors do get hot.  Not blued metal
case hot, though.

-- Jim



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Re: [MBZ] Blower control unit

2009-02-20 Thread Luther
Unplug all wiring and check for continuity again.  This will make sure 
it's not a wiring issue.


Luther

Archer wrote:

Does anyone know how to get the blower speed control unit and the temperature 
control unit out of an '83 300D Turbo without taking out the dash cover? It 
looks like both are mounted on a piece of metal that is not fastened at the 
back.  I see one screw where a strip is fastened to the firewall.  These are 
above the glove box and accessible with the glove box removed.

I unplugged the blower, put 12v on it and it runs fine, but the cable that goes 
to it shows a dead short.
The pushbutton control unit board is fried and out of the car; the thin coils 
in the resistor unit under the hood for the blower control shows overheating.  
I have the electrical manual for that car, and best I can figure out the short 
must be either in the blower control unit or the resistor bank under the hood.  
I already have a replacement pushbutton unit and have a source for whatever 
other parts, so I'll probably wind up replacing all the climate control units, 
but I need to get the blower unit; and possibly the temperature unit out; in 
order to identify the cable numbers and check the cables for shorts.
Thanks,
Gerry  

--
Luther   KB5QHUAlma, Ark
'87 300SDL (281,xxx mi)
'85 Ford F250 6.9 diesel (x59,xxx mi) BioBeast
'82 300CD (183 kmi)
'82 300D  (74 kmi) getting donor engine-sold
'85 300D (280,176) parts car sans engine The Accordion


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