>>I'd like info on the failing heater fan though folks.

Hi Dave,

     no one else seems to be coming forth with an answer for you so I'll have a
bash at it. Given that it runs for ten minutes and fades --- and then will do
the same thing when cooled ---- you've probably got an intermittent short. (A
wire somewhere is expanding with heat and making contact where it shouldn't). So
where's the short?? The two most likely possibilities are the switch and the fan
itself. I'd look at the switch first because it is a huge pain to get at the
fan. Replace it or jump it and see if the problem recurs --- hopefully it will
go away. If that doesn't work check and clean the grounds (always a
possibility). You have to remove and replace the entire dash to get at the fan
motor (assuming the Doublecab is the same as a vanagon --- I think it is) and
this is an 8 hour job for a pro. This is why I do without my front fan ----
though my Westy has a rear heater and fan that works very well.

Good Luck,

Doug Alcock
'84 Westy "BlueBelle"
Toronto, Canada