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HEATER CONTROL UNIT PROBLEM - A SOLUTION

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Hi all

 

Just to let you know I've solved the heater control problem (see earlier post).

For those who don't know - I foolishly broke the copper contact whilst trying to adjust it (fatigued) and EVERYWHERE I went I was told I needed a new control unit. Cost from the stealers to include fitting £400!!!

 

Anyway I found a way of repacing the worn (or broken!) contacts using a passat control unit I picked up for £12 today. The best thing is you dont even need to take out the control unit or disconnect the cables. A ten minute job!

 

Well I will post a detailed explanation of how I did it with photographs soon - as soon as I figure out how to upload them. Watch this space

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yeah but I think he replaced the whole unit after modifying it

This is only relevant if you have a problem with the copper contacts (its either the copper contacts or the thermal fuse in the blower that causes this common problem)

 

rather than trying to bend the contacts (and break them in my case!) its a lot easier and cheaper to take out the connector on the unit and replace it

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Guest

yeah, I think Kevs was about the thermal fuse, and resistor pack?

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You can use any rotary control unit because all you want is the copper contact unit. This is not sold as a separate VW part - hence having to fork out a fortune to replace the whole unit.

However the copper contact unit is MANUFACTURED separately and attached to the unit

 

If you have a problem with the heater control unit only working on higher speeds, then yes it could be the thermal fuse in the blower, but ITS MUCH MORE LIKELY TO BE THE THE COPPER CONTACTS NOT SITTING PROPERLY. These are difficult to manipulate into position (true VW style) and can be broken - see my story

 

BUT, just get an old unit from a passat, dont worry about the cable holders etc. You just prise out the copper unit where the electrics cable connects behind and slip it into your own car's control panel.

The beauty of it is that all you need to do is remove the stereo to get at the connector behind the control unit and don't have to remove the whole unit (a helluva job bearing in mind you musnt bend the vent cables etc)

 

Ive tried to upload the pics, but its saying "The Attachment/Image must be less than 1280 pixels wide and 1024 pixels high"

 

If any moderators can see a way round this let me know

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Ive tried to upload the pics, but its saying "The Attachment/Image must be less than 1280 pixels wide and 1024 pixels high"

 

If any moderators can see a way round this let me know

 

Make the pictures smaller! :roll: :lol:

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dazzy

 

Kevs heater control mod involves REMOVING THE UNIT and modifying the control cable

This is not necessary if the problem is with the fanspeed dial with the copper contacts

 

HENRY - how do I make the pics smaller? :?:

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Yeah I replaced the whole unit as my whole thing was knackered!! I know what you mean about the copper contacts though, had a similar issue myself!

 

K

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THESE ARE THE PICS OF A PASSAT HEATER CONTROL UNIT AND SHOULD EXPLAIN HOW TO SIMPLY REMOVE THE COPPER CONTACT UNIT WITHOUT REMOVING THE WHOLE PANEL

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Excellent stuff! - Thanks for the info... I just snapped my copper contact... Just got o go find a passat donor... Sooo much cheaper than what I've been quoted for a 'rado fan unit and controls (as no one would sell the copper contact alone)

 

Amazing... as soon as its a Corrado spare part... the price inflates! ;-)

R

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