Easy test is wait for it to happen again and this time unplug the 3 pin
connector from the rad temp switch and see if the fan stops.

In my experience it is slightly more likely to be the A/C system causing
the fan to continue. The main A/C relay can stick on.

Mark

Robert Clemmer wrote:
> 91Tintop GL  2.1 automatic.  All original.
>
>
>
> Well, my car finally gave me something to do.  When returning from running
> errands yesterday the low speed fan would not shut off.  I resorted to
> disconnecting the battery to shut it off and save the battery from deep
> discharge.
>
>
>
> Anyone want to weigh in on the most like culprit.  My guess is the
> temperature switch on the radiator.
>
>
>
> Thanks in advance
>
> Bob Clemmer
>