Fan control module overheats? '96 C4
to keep the heat out of the interior.
Now the control module overheats and turns itself off.
This is probably a pulse width modulated fan motor driver.
It is on a large heat sink and is always too hot to touch at any fan speed setting.
This seems terribly inefficient.
A decent control module should have some setting that is off.
Is there a driver problem or just bad design?
Anyway, what is the solution to get the fan to work with the stock dash controls?
Bigger heat sink, different contol circuit, etc?







