Heater/aircon meltdown

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locostmike
Posts: 6
Joined: 31 Jul 2014, 21:47

Heater/aircon meltdown

Post by locostmike » 07 Aug 2014, 23:14

Hi Folks,

This is a follow-up post to my previous problem. The heater and aircon don't respond at all, no fan/heat/aircon. The rear screen heater works as does the heater fan if a current is applied directly to it's feed wires. I guess I need a new control unit that seems impossible to access easily. There's a replacement control unit available but I can't access the old one in the car to compare part numbers to ensure it will fit. Is there a way of using the chassis number to resolve this? Is there another cure? Any help very gratefully received

Mike

Hell Razor5543
NOT Alistair or Simon
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Re: Heater/aircon meltdown

Post by Hell Razor5543 » 07 Aug 2014, 23:22

If you post up the last 8 digits of the VIN somebody with the relevant access will be able to look it up and give you the information you need.

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CitroJim
A very naughty boy
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Re: Heater/aircon meltdown

Post by CitroJim » 08 Aug 2014, 04:14

Mike,

Which car is this? Just so we can move this thread to the correct section of the forum please :)

Northern_Mike

Re: Heater/aircon meltdown

Post by Northern_Mike » 08 Aug 2014, 04:42

It's a 2001 Xantia Estate with AC Jim..

RichardW
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Re: Heater/aircon meltdown

Post by RichardW » 08 Aug 2014, 07:38

The climate ECU is located vertically on the RH side behind the glove box, and is relatively easy to access once the glove box is removed. I've got a spare one you can have I think. I doubt this is the problem though - it's more likely just a loss of power to the fan - if the fan is not running, then you won't get any heat / cold into the car. Check that there is 12V on the power wires on the fan. If not, then investigate the relay down above the throttle pedal to see if it has 12V on it. Does the AC swtich light up? There are several long threads about failure of the power supply to the fan on MK2s - there's a splice in the wire somewhere that fails, but it can remedied by jumping in a new supply.

locostmike
Posts: 6
Joined: 31 Jul 2014, 21:47

Re: Heater/aircon meltdown

Post by locostmike » 08 Aug 2014, 09:06

Thanks RichardW and others, I'm away this weekend so will get onto it next week.

locostmike
Posts: 6
Joined: 31 Jul 2014, 21:47

Re: Heater/aircon meltdown

Post by locostmike » 06 Sep 2014, 14:27

Hi RichardW,

my mechanic is still wrestling with the problem, could I buy the unit from you that you mentioned?

Kind Regards

Mike