Will it come on if you press and hold the on button? Those switches are
notorious. Sometimes it a took a few tries. Each time but we had to hold it in
until it "caught." The solution is solder a new switch in or hope each time that
it would catch and hold.
Quoting Paul Eby <[log in to unmask]>:
> Hello all,
> I'm looking for assistance with a problem after a power outage: the
> pumps on our Delta Plus XL will not turn back on.
> When I toggle the source pump button, nothing happens (LED light does
> not come on, no pump activity). The instrument does indeed have power
> (various fans and electronics are humming), and I have reset the
> breakers on the back.
> The roughing pump itself is fine - it works fine when plugged into a
> hot socket. I've also gone through the system looking for blown fuses
> and loose cables. I've also left it unplugged for a few hours hoping
> for a miraculous reset of some sort. No luck.
> Any ideas?
> Paul Eby
> [log in to unmask]
> Biogeochemistry Lab (E-Hut, room 102)
> School of Earth and Ocean Science
> University of Victoria
> PO Box 3055
> Victoria, B.C.
> V8W 3P6
> phone: 250-721-6183
> fax: 250-472-4620
Greg Eischeid--Harvard University
20 Oxford Street
Cambridge, MA 02138 USA