Yeah, Graeme, trying to sort this in my head also. My memory is that you have 120 to the “in” side of the pstat, with continuity to the normally closed terminal (steam boiler) so it would send power to steam when cold and under pressure. Once steam comes to pressure, the pstat switches to normally open terminal and sends power to brew element (via PID for temp control, yes?). That was my point—if the gfi pops on brew wiring when cold, I’m still not clear that it’s just the element. And especially since he got normal readings for resistance on both elements. If the element is cracked/shorting via water to ground, I’d expect resistance to be something other than normal, unless the crack was appearing when hot, which it’s not.
Could a pstat wire (or other hot wire) be shorting to ground? But wouldn’t that cause the gfi to trip for either boiler (i.e. since if it was steam, it would trip when cold, brew would trip when hot, both should trip if the short was prior to the input side of the pstat?). More thoughts? b > On Aug 22, 2016, at 08:02, Graeme Burton <[email protected]> wrote: > > Good thinking Ben. But I think only one element wire is switched through the > pstat? Therefore there is power to one, side of the element and that can then > short to earth no matter what the pstat is doing. Does that sound right? > > Graeme > From: StevieG. > Sent: Monday, 22 August 2016 22:58 > To: Brewtus > Reply To: [email protected] > Subject: Re: Dead short? > > Hi Ben - It pops the GFI with everything cold, and only when brew was > connected and steam disconnected, but not the other way around. With the > steam boiler normally wired and the brew boiler not connected, everything > functions. > > Will call Todd today to order a part, then on with the fun :) > > Thanks much, > Steve > > > -- > You received this message because you are subscribed to the Google Groups > "Brewtus" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at https://groups.google.com/group/brewtus > <https://groups.google.com/group/brewtus>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > -- > You received this message because you are subscribed to the Google Groups > "Brewtus" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at https://groups.google.com/group/brewtus > <https://groups.google.com/group/brewtus>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/brewtus. For more options, visit https://groups.google.com/d/optout.
