When I ran the "engineheater" for the first time since I bought the Astra Coupé the Fan started to go on MAXIMUM when the engine is running and the engine management light came on. When I stop the engine the Fan IS STILL RUNNING, but now on lower speed. There is also another warning light running together with management light. Looks like a battery.
What can cause this strange problem?? Any ideas?? Don't want the Fan to run 24/7 so fast help is greatly appreciated!