Re: interior fan

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Re: interior fan

Alan

23 Sep 2006 16:56

>Hi,
>
> My daughter needs help with her "X" reg Focus. The heater/demister
>fan has four settings but will only blow on maximum on number four and
>not on the other three. What is the problem?

The most likely cause is that the thermal fuse in the ventilation motor
resistor pack has blown. The speed of the motor is controlled by three
resistors with an in series thermal fuse. The fourth position (full
speed) just switches the motor straight across the 12V - with no series
resistors or fuse.

See
<http://www.amac.f2s.com/Focus1/>

It is not unknown for the switch to mechanically fail but this is less
likely.

Previously posted is the DIY method of fixing....

<http://groups.google.com/group/alt.autos.ford.focus/browse_frm/thread/8d
f6d00fc2e31aa7/980a3e02b805a21d?lnk=st&q=thermal+fuse++f2s+group%3Aalt.au
tos.ford.focus&rnum=1&hl=en#980a3e02b805a21d>

Signature

Alan
news2006 {at} amac {dot} f2s {dot} com

hewden	23 Sep 2006 14:59
Hi, My daughter needs help with her "X" reg Focus. The heater/demister fan has four settings but will only blow on maximum on number four and not on the other three. What is the problem? Cheers Ian

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