I've also head that the sending unit in the tank can take on water and make the lights non-operational.

Todd
'88 Westy
David Beierl <dbeierl@ATTGLOBAL.NET> wrote:
> At 10:01 AM 6/8/2001, Jay L Snyder wrote:>Only the full (green) light appears to work anymore on my water tank level
>indicator.  They all worked up until sometime last year.   Any simple fix
>for this?  How does this system work?  Are there contacts in the
>tank--there looks like three studs that  stick through the tank wall.
>                                                         Jay '85 Westy

Jay, likeliest thing is a contact problem.  Pull the panel and ground the
green wire at the connector -- if all three lights go out then the panel is
probably ok.  The little magic resistor pack in the secret compartment
might be bad, but they don't often fail.

david

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