What is the fault?
It is not unknown for the heater fan switch to fail but there is another
fault that is fairly common. If the heater fan only works on the fastest
settings the likelihood is that the thermal fuse in the resistor speed
regulation module has failed.
For a related article, including removing switch see
One of the links to the circuit and details of thermal fuses has changed
to
<<http://www.amac.f2s.com/Focus1/>>
OR
<http://groups.google.com/group/alt.autos.ford.focus/browse_frm/thread/d3
f8f824445fd5c0/2f54afb11564c5dc?lnk=st&q=internal+blower%2Ffan+group%3Aal
t.autos.ford.focus&rnum=1&hl=en#2f54afb11564c5dc>
If it is the thermal fuse then someone has recently suggested on this
newsgroup that a replacement module can be obtained for around $15 (US)
so its probably not worth a lower level do-it-yourself fix.
OR
<http://groups.google.com/group/alt.autos.ford.focus/browse_frm/thread/b0
112ac1fce3fedb/29f990a48996f944?lnk=st&q=&rnum=1&hl=en#29f990a48996f944>
--
Alan
news2006 {at} amac {dot} f2s {dot} com
>the heater fan switch only works on the first and second setting.
I had the same problem with a 98 escort. It was not the switch. It
was the connection for the blower that had failed. On mine, it was
under the dash in the passenger side. Rather large 4 wire connector
that for some reason looked like it had melted and corroded. Pulled it
apart and cleaned it up and the 4 speeds started working again.
Thank you all, for your help.
"Alan" <junk_...@amac.f2s.com> escreveu na mensagem
news:S0X0R+EO...@amac.f2s.com...
Thank you all, for your help.
"Alan" <junk_...@amac.f2s.com> escreveu na mensagem
news:S0X0R+EO...@amac.f2s.com...
> In message
> <48598a0396ac7574...@localhost.talkaboutautos.com>, wrinkled
> <jwh...@eastlink.ca> wrote
>>Can anyone tell me how to remove the dash so that i can replace the heater
>>fan switch?
>>
>
The thermal fuse is part of a module that also contains 3 resistors and
can be found close to the blower fan. The fan is behind the glove box.
If you flex the sides of the glove-box you can drop it down - you should
then see the blower motor
Note that it may be an easier job to replace the whole module as it
doesn't appear to be that expensive to buy from the ford parts
department..
The links you quoted should give you more information
>> <http://tinyurl.com/ycakz3>
>> <<http://www.amac.f2s.com/Focus1/>>
>> <http://tinyurl.com/yjv9co>
I did this recently on my 2001 ZX3 US model built in Mexico.
1. Take the glove box out. (Side panel in the foot well may have to come
out as well)
2. To the left of the blower motor housing, follow the wires closest to the
housing to the firewall.
3. The variable resistor should be a black or blue plastic rectangle approx
1" by 2" and is held on by one
or two small bolts. It is very obvious once you eyeball it.
4. When you pull it out, it will have, I believe, 3 resistors on the back.
5. It cost me $15 at the dealer for the part.
This is as best as I can remember and should be of help if you have a US
model. I would ask the
dealer to bring up a schematic on the microfiche showing you where yours is
at on your model before
you start tearing things up or ask a mechanic if my description is about
right.
Good luck. Also, if your motor quits altogether before you replace the
resistor you may have
blown a fuse as well.
<vitor-f...@netcabo.pt> escreveu na mensagem
news:454a7711$0$26207$a729...@news.telepac.pt...
>ok, already found and I disassembled the unit, and the thermal fuse is
>melted, the resistances are good. if somebody wants pictures of the unit can
>send for the email, it is only to ask for vitor-f...@netcabo.pt, thank
>to all by the help. does anybody know if I can just buy the thermal fuse and
>where?
Yes you can buy thermal fuses on its own. In the UK the cost is around
1 GBP (2 US $). In the UK there are a chain of shops that sell
electronic components and it is also available from a couple of UK mail
order companies. It may not be a good idea to buy from a UK company if
you are not in The UK as the cost post shipping will be _many_ time the
cost of the item and buying the whole module from a local Ford dealer
would be cheaper.
You need to find a company that sells electronic components in your own
country.
See
<http://www.amac.f2s.com/Focus1/>
Scroll down past the circuit diagram to the pictures of the pages form a
couple of online catalogues.
>ok, already found and I disassembled the unit, and the thermal fuse is
>melted, the resistances are good. if somebody wants pictures of the unit can
>send for the email, it is only to ask for vitor-f...@netcabo.pt, thank
>to all by the help. does anybody know if I can just buy the thermal fuse and
>where?
With permission, the photos have been reproduced on
<http://www.amac.f2s.com/Focus1/>
>and you will have to get a code from the dealer costing you 50$.
Or from someone from Ebay selling the code for about $1.50 or from
someone else who can tell you for nothing.
<JEO...@hotmail.com> escreveu na mensagem
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