SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Aircon / climate control problem, help anyone?

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Old 08-10-2016, 04:23 PM
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SL500 R230
Aircon / climate control problem, help anyone?

Hi

I have a strange problem. The aircon compresser has been changed, all faults in the system/computer was reset, the aircon workd. After 20 minutes max, the aircon button went red. And when pressed it blinked 3 times and stays red.

I've just installed a new battery in the trunk as the old one did not have enough voltage. Thought that might have some influence too on the aircon.

Errors was once again cleared, and the aircon worked again....for about 10 minutes, and then went red again.

Can anyone help me?
Old 08-10-2016, 10:24 PM
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What's the error code?
Old 08-11-2016, 01:13 AM
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Originally Posted by Rudeney
What's the error code?
I don't know, I've just asked the workshop/garage. Will return if they have it still.

Thanks.
Old 08-11-2016, 10:51 AM
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Originally Posted by Henrik Konnerup
After 20 minutes max, the aircon button went red.
Your compressor was just replaced, yet your system may be low on refrigerant.

If refrigerant pressure is too low, then the climate controller will disable the compressor and continuously illuminate the AC OFF button's LED. This sets a diagnostic code in the climate controller, and erasing that code is a prerequisite to restoring operation of the compressor.
Old 08-11-2016, 11:24 AM
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Originally Posted by bobterry99
Your compressor was just replaced, yet your system may be low on refrigerant.

If refrigerant pressure is too low, then the climate controller will disable the compressor and continuously illuminate the AC OFF button's LED. This sets a diagnostic code in the climate controller, and erasing that code is a prerequisite to restoring operation of the compressor.
Thanks, they did refill the system after change of the compressor, maybe they must check again. Thank you very much. I've also asked for the errorcode, but they have not asked. Dont now if they can recall it.
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Old 08-11-2016, 11:28 AM
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If they pull a code B1256, definitely low on refrigerant.
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