Xantia air con switch

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Barry0allegro
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Xantia air con switch

Post by Barry0allegro » 26 Jul 2015, 10:49

Does anyone know why the air con switch in my poor old xantia is so dim? You can only tell if it's on in the dark! Can the bulb be replaced or does it need a new switch? Thanks for any help

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Stickyfinger
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Re: Xantia air con switch

Post by Stickyfinger » 26 Jul 2015, 12:07


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xantia_v6
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Re: Xantia air con switch

Post by xantia_v6 » 26 Jul 2015, 12:11

The Mk1 switches have bulbs with green plastic filters. Over time the bulbs get a little dimmer, but the filters oxidise and turn nearly black.

If you can find a mk1 at the breakers, find a switch which is not illuminated very often (e'g. the alarm defeat switch) and it will have a bulb and filter in almost new condition.

The filter and bulb are reached through the front of the switch, it is best to practice dismantling on a spare switch first.

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Stickyfinger
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Re: Xantia air con switch

Post by Stickyfinger » 26 Jul 2015, 12:43

Inside an S1 and S2 switch
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Note the opaque white diffuser and the leds fitted to the S2 switch.


With the diffuser removed and the leds (S2) exposed
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My MOD, I removed the diffuser and fitted reflective foil
Image

Barry0allegro
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Re: Xantia air con switch

Post by Barry0allegro » 26 Jul 2015, 16:53

Thanks for the help folks will try with an lesser used switch

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Zelandeth
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Re: Xantia air con switch

Post by Zelandeth » 26 Jul 2015, 23:34

Interesting. While the "on" light on my (S2) AC switch works, it's illumination doesnt...wonder if we have a dry joint in there. *adds to the "investigate on a rainy day" list*

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xf1ref
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Re: Xantia air con switch

Post by xf1ref » 27 Jul 2015, 09:52

At Xantia S2 the illumination green led's can be repleaced with some brighter..also for xantia s1 the bulb can be repleaced with a led serial with a resistance.

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Stickyfinger
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Re: Xantia air con switch

Post by Stickyfinger » 27 Jul 2015, 11:55

Taking a S1 switch apart......as it is fitted with a resistor, where is one added and how to get two brightness levels ?

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xf1ref
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Re: Xantia air con switch

Post by xf1ref » 27 Jul 2015, 13:54

Well, for Xantia 1 is a bit different. When you turn on the lights the bulb is powered through the resistance and is less brighter.
I think that when you push the AC button the resistance is bypassed and the bulb is powered with full voltage ~14v and is more brighter.
You can try to get two brightness levels by powering one led through two resistance or by using two led's, one for each level of brightness.

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Re: Xantia air con switch

Post by tim leech » 27 Jul 2015, 14:31

My Desire 2 has the same issue, I have a fee spare switches so will swop one over and exchange the fronts.