Date:         Wed, 2 Jan 2002 13:59:05 -0500
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Heater Fan + Wipers blows fuse?
Comments: To: BlackJack <jack@FERRET.NTS.LOGICON-LCIS.COM>
In-Reply-To:  <Pine.GSO.4.05.10201021144050.851-100000@ferret.nts.logicon
              -lcis.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 01:49 PM 1/2/2002, BlackJack wrote:
>On my wife's new to us 84 when the front heater fan is on high and
>she runs the wipers, the associated fuse blows HARD!  Apparently this has
>been an ongoing issue with this van as the plastic fuse cover shows "melt"
>marks at the fuse (#10?).
>
>First guess is that the fan is pulling too high an amperage, but wanted to
>check with the list and see if this is a known issue.

Known issue.  Fan draws 12 amps at high normally, engine not running (test
on three samples, one new, direct to battery).  Might be a little different
installed, but not much.  If yours draws close to that then it's ok.

Dunno what the wipers draw but the circuit is definitely overloaded.  So is
the fan switch.  Solution is run a new fused circuit for the high speed,
and use the switch to control a relay for that speed.  The other two speeds
aren't a problem.

david


--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"