Yeah, that's what I was trying to say. Not sure which part is the level sensor, will have a look. b
Sent from my apple IIe > On Jul 27, 2015, at 10:54, Bruce J keeler <[email protected]> wrote: > > Perhaps the level sensor needs replacing, or is somehow shorted to ground. If > it was preventing the steam boiler from filling that could explain why your > element burned out. > >> On 7/27/2015 10:37 AM, Benjamin McCafferty wrote: >> Good lord, when it rains it pours. OK, recap: >> --Steam boiler wasn't firing, discovered that over temp switch was brittle >> and malfunctioning. >> --Totally disassembled machine, cleaned and descaled every part of it except >> teflon lines and chrome manifold. >> --Replaced both overtemp switches and thermoprobe on the brew boiler. >> >> --Steam boiler still not firing, figured out that the steam element was bad. >> --Replaced both elements. >> >> --Steam boiler still not firing, figured out that the pressure stat was bad. >> --Replaced pressure stat, set pressure to 1.7 bar. >> >> --Machine functioned normally for that afternoon, then the next morning the >> steam boiler wouldn't fire again. >> --Reset the overtemp switch, lowered pressure to 1.5 bar, machine functioned >> normally yesterday and today, except the steam wand was "spitting" instead >> of a nice smooth hiss. >> >> --Today I flushed the steam boiler, i.e. ran all the hot water out of it to >> cycle the water. I immediately noticed that a) there was far less water >> than normal in the boiler, and b) the pump did not kick on to refill the >> boiler. Realizing that this would overheat and kill the new element, I >> turned the machine off. >> >> OK, my techie instincts are that it is highly unusual for 3 separate parts >> of the steam system to fail at once, without some other mitigating >> circumstance. My best guess so far is that whatever switch/sensor is >> responsible for filling the steam boiler was weak or failed, and cause the >> boiler to run on whatever water was still in there prior to all this >> happening. Since my hot water line was clogged, I couldn't flush and >> therefore wouldn't have realized that the steam boiler was not refilling. >> The stuff in the steam boiler before cleaning was like oatmeal without the >> oats--thick goop. I'm still unclear, however, on why the steam boiler >> filled partially after all the recent service. >> >> Does anyone have any thoughts or SWAGs on this? What is the next part I >> need that would trigger my pump to fill the steam boiler? >> >> Sigh. Espresso-less again, but I have to be close and at least I've had a >> few great shots in the past 48 hours, right??? >> >> All the best, >> Ben >> >> Sent from my apple IIe >> >> On Jul 26, 2015, at 16:14, Benjamin McCafferty <[email protected]> wrote: >> >>> The valve starts to gently hiss at 1.8, and blows off all the way just a >>> bit over that, maybe 1.9. >>> best, >>> bmc >>> >>> Sent from my apple IIe >>> >>> On Jul 26, 2015, at 16:12, Todd Salzman <[email protected]> wrote: >>> >>>> Yes, that could be problem. I am a little surprised that he pressure >>>> relief valve did not start to blow off at 1.7 bar. >>>> We set the steam boiler to run between 1.3 and 1.4 bar. >>>> >>>>> On Sun, Jul 26, 2015 at 4:59 PM, Ben McCafferty <[email protected]> wrote: >>>>> Thanks, Todd. >>>>> >>>>> Since I just replaced both switches, I am not sure what to think. My best >>>>> guess is that I had set the steam boiler pressure a little bit too high >>>>> at 1.7, and so perhaps the boiler was going long enough to activate the >>>>> overtemperature switch. I have turned the pressure back down to about 1.5 >>>>> and things seem to be working normally again. >>>>> Best, >>>>> bmc >>>>> >>>>> Sent from my iPhone >>>>> >>>>> On Jul 26, 2015, at 03:27, Todd Salzman <[email protected]> wrote: >>>>> >>>>>> Most likely it is the over temperature switch. If the pressure was set >>>>>> to high the pressure relief valve on the boiler would blow off before >>>>>> the over temp switch would trip. >>>>>> >>>>>> You may want to try switching the over temperature switches between the >>>>>> brew and the steam boiler. The brew boiler does not get as hot so the >>>>>> switch may not trip as much while you get a new over temperature switch. >>>>>> >>>>>> >>>>>>> On Sat, Jul 25, 2015 at 12:01 PM, Graeme Burton >>>>>>> <[email protected]> wrote: >>>>>>> May be a silly question but did you adjust the pressurestat after >>>>>>> installation? >>>>>>> >>>>>>> Graeme >>>>>>> From: Benjamin McCafferty >>>>>>> Sent: Sunday, 26 July 2015 00:00 >>>>>>> To: [email protected] >>>>>>> Reply To: [email protected] >>>>>>> Subject: Re: Steam boiler overprescribing >>>>>>> >>>>>>> Hi Todd and all, >>>>>>> Got the new pressure stat in yesterday, and the machine heated and >>>>>>> functioned normally for the rest of the day. This morning, I turned it >>>>>>> on and the steam boiler didn't heat. I reset the over-limit switch >>>>>>> (new) on the steam boiler and it's now heating. >>>>>>> >>>>>>> Is there something I should be concerned about here? I'll see if it >>>>>>> was a fluke, but not clear on why the new switch would pop. >>>>>>> >>>>>>> best, >>>>>>> bmc >>>>>>> >>>>>>> Sent from my apple IIe >>>>>>> >>>>>>> On Jul 22, 2015, at 18:46, Benjamin McCafferty <[email protected]> wrote: >>>>>>> >>>>>>>> Thanks Todd. Is the wire that provides power the common, normally >>>>>>>> open, or normally closed? I'll grab a multimeter but if you know >>>>>>>> right off hand...I can be lazy... >>>>>>>> best, >>>>>>>> bmc >>>>>>>> >>>>>>>> Sent from my apple IIe >>>>>>>> >>>>>>>> On Jul 22, 2015, at 18:07, Todd Salzman <[email protected]> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> I would recommend, pulling the wire off pressure stat that supplies >>>>>>>>> the power to the pressure stat and see if it keep over heating. >>>>>>>>> If it turns off when you pull the wire you need a pressure stat. If >>>>>>>>> it keep heating you have another problem. >>>>>>>>> >>>>>>>>> On Wed, Jul 22, 2015 at 6:21 PM, Benjamin McCafferty >>>>>>>>> <[email protected]> wrote: >>>>>>>>>> Doing a little reading, seems pretty clear that my pressure stat has >>>>>>>>>> failed also. Quite a coincidence! Anyway, please send any other >>>>>>>>>> thoughts, but I'll order a new p-stat. It's been in there for at >>>>>>>>>> least five years; date of manufacture is 9/04 so it was on a shelf >>>>>>>>>> for at least 3 years before installation, maybe more. >>>>>>>>>> best, >>>>>>>>>> bmc >>>>>>>>>> >>>>>>>>>> Sent from my apple IIe >>>>>>>>>> >>>>>>>>>> > On Jul 22, 2015, at 14:44, Ben McCafferty <[email protected]> wrote: >>>>>>>>>> > >>>>>>>>>> > Ahem. "Steam boiler over pressure" >>>>>>>>>> > >>>>>>>>>> > Sent from my iPhone >>>>>>>>>> > >>>>>>>>>> >> On Jul 22, 2015, at 14:30, Ben McCafferty <[email protected]> >>>>>>>>>> >> wrote: >>>>>>>>>> >> >>>>>>>>>> >> Hi all, >>>>>>>>>> >> >>>>>>>>>> >> More parts arrived today. I have new elements in both boilers, >>>>>>>>>> >> new overtemperature switches on both boilers, new PID >>>>>>>>>> >> thermoprobe, new power switch. >>>>>>>>>> >> >>>>>>>>>> >> When I switch the unit on, everything looks good but the steam >>>>>>>>>> >> boiler continues heating on up to 2 bar, and then the >>>>>>>>>> >> overpressure relief begins to blow so I switch the unit off and >>>>>>>>>> >> release some pressure from the steam wand. I have turned my >>>>>>>>>> >> pressurestat (jaeger) all the way down and no change. Any further >>>>>>>>>> >> ideas to help me solve this lingering problem? >>>>>>>>>> >> >>>>>>>>>> >> Thanks all, >>>>>>>>>> >> Ben McC >>>>>>>>>> >> Sent from my iPhone >>>>>>>>>> >> >>>>>>>>>> >> -- >>>>>>>>>> >> 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 http://groups.google.com/group/brewtus. >>>>>>>>>> >> For more options, visit 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 http://groups.google.com/group/brewtus. >>>>>>>>>> For more options, visit 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 http://groups.google.com/group/brewtus. >>>>>>>>> For more options, visit 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 http://groups.google.com/group/brewtus. >>>>>>>> For more options, visit 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 http://groups.google.com/group/brewtus. >>>>>>> For more options, visit 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 http://groups.google.com/group/brewtus. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>>> -- >>>>>> You received this message because 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email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> Visit this group at http://groups.google.com/group/brewtus. >>>> For more options, visit 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 http://groups.google.com/group/brewtus. >>> For more options, visit 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 http://groups.google.com/group/brewtus. >> For more options, visit 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