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Like Klaus said you will need to pull codes on the climate control system to see what is going on with the blinkin' lights. On the fan control nobody is going to be able to just tell you whether or not your speed control has taken a crap or not. You need to have it diagnosed by someone who knows what the heck they are doing. Myself, if I get a car in the shop with a dead fan I recommend that you replace both the fan as well as the power stage to it. We used to have problems with these back in the day when they first came out and the official Volvo fix was to replace both the fan and the power stage. The power stages are not the best thing in the world and then you have the added stress of trying to pull current through to run a fan that is mechanically seizing, has a bad habit of smoking them. I had a lady come in the other day that had a power stage that worked but it made a chainsaw noise through the audio system when it was on. Faster the fan went the faster the chainsaw noise was, first time I had seen that one. The only good news is that if you have figured out how to R&R the fan motor then the power stage is right there next to it, piece of cake.
Mark
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