Xsara 1998 Heater Blower Switch Faulty - any ideas?

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peter01443
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Xsara 1998 Heater Blower Switch Faulty - any ideas?

Post by peter01443 »

Hello all.

The heater fan only works in position 4 - flat out, whether turning clockwise or anti-clockwise (recirculate) This wouldn't be so bad except the main vents remain shut, so the fan is blasting away, but no air through any of the vents.

Is it the switch, is it a relay, is it a transistor, or is it a mystery? Help would be appreciated.
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myglaren
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Post by myglaren »

Hi and welcome.

As you might suspect, yours isn't an isolated incident.
here is a thread on the problem from a few months ago.
Hope it helps.
peter01443
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Post by peter01443 »

Thanks for that, I am not sure that it gives a definitive answer although I accept that the transistors may be at fault - but why are the main vents shut. This car does not have A/C or Climate Control.
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Clogzz
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Post by Clogzz »

The 169°C thermal fuse in the resistor pack has blown, cheap and easy to replace.
Usually caused by restricted airflow.
The vents shut is a likely cause, also a blocked pollen filter if it’s got one.
Vent faults are mechanical: bowden cables, sliders, flaps, or dash outlets shut unintentionally.

Old topic here: http://www.frenchcarforum.co.uk/forum/v ... hp?t=23334

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