[ausev] Vacuum pump sticking

[rob at zehicle.com]

All,

My Square-D vacuum pressure switch (pictures on RAVolt.com) seems to
be sticking and not turning off.  The relay switch will instantly
click open (off) if I tap it, but does not open by itself.  It has no
trouble closing (on) when the vacuum drops.

Is this a spring tuning issue?  Has anyone seen this before?

Reminder: I'm hosting an open garage on Sunday.  See my blog for details.

Rob (using new list email address)
RAVolt.com & EVAlbum 995