All Things Mk5 > How to Guides / Troubleshooting

Heater broken, any ideas?

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vRStu:
Ahh so are you saying that you've not put the original control panel back in?

I'm 99% certain that an A/C control unit requires a basic setting adaptation.  There is also a chance that if it's not your original unit it may be coded incorrectly for your car.

vRStu:
Here you go -

Basic Setting
Note: The basic setting needs to be performed, when the climatronic control module (J255) or a motor have been replaced.



[08 - Heating/Air Conditioning]
[Basic Settings - 04]
Group 001
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
The basic setting takes approximately 40 seconds.
[Done, Go Back]
[Close Controller, Go Back - 06]

http://wiki.ross-tech.com/wiki/index.php/VW_Golf_(1K)_Climatronic#Basic_Setting

Garth:
Cheers Stu,

still no joy though  :sad1:
Darren has been round today and we spent AGES trying to suss out the problem. We tried the basic settings and it wouldn't work on the original controls. We tried it on the spare controls and it took the recode but I still have the same problems as before.

Funny thing is, we got different error codes depending on which control unit was connected  :confused:

With the spare controls, I get the error that the actuating motors voltage is too high (one fault for each side).
With the original, I get temperature sensor errors.

I was going to go the whole hog and do a mk6 climate control conversion with all the ancillaries, but I can't find a set of controls for less than £200 delivered and then I'd need the motors from behind.

So I have ended up buying ANOTHER control unit (got more stock than VW now!) and an actuator motor. I'll try these and see if anything improves. If not, I'm stumped!!
 :sad1:

Garth:
Fixed it!

It was the control unit. Very odd given that it still had the error with my spare control too. I bought a new control unit and after fitting it (and changing all the LED's yet again), everything works fine.

I must have damaged it when messing around with it when it was still connected.  :ashamed:

Looks like I have some spare parts now though, so I might start selling the spare buttons and facia to people that have scratched theirs

 :drinking:

Gene Hunt:
Result, must have spent a bit tho ?.

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