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ISTA+ ISTA+ 64 02 00 (553) IHKA control panel: LED in A/C button flashes
Hi Larry,
Great work! I have been following your posts on this retrofit with interest.
I believe the AC compressor will turn on when the in-cabin humidity is high and defrost is turned-on.
Regarding the flashing A/C LED, it appears to be normal when a new IHKA control panel is installed. Please see attached from ISTA+/Rheingold.
Larry
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2020 Black Sapphire M340iX
2014 Estoril Blue 435iX - sold
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