Do you recall the cap value? I would like to check my inventory or order before I tear into my working machine.
Thanks! Ken On Saturday, November 26, 2022 at 12:27:32 PM UTC-7 [email protected] wrote: > The board pulls right out of the plastic enclosure. > > My cap wasn't bulging. Use your multimeter's capacitor test function. Its > capacitance degrades over time. If its below spec replace it. Probably I > will wait until symptoms before I replace it again. The symptom is an loud > 60hz buzzing from machine - as if something was very wrong... :) > > > > On Tuesday, November 15, 2022 at 2:52:52 AM UTC-8 Ken wrote: > >> Great write up. I am thinking I should check that cap on mine. Is it >> difficult to separate the board from the plastic case of the giemme control >> module? Much easier to replace a bulging cap now than to source that relay! >> Mine is working perfectly but preventative is easier. >> >> On Thursday, November 3, 2022 at 5:01:36 PM UTC-6 [email protected] wrote: >> >>> Ok. Happy ending and some good stuff to share. >>> >>> The relay on the board is a finder 44.62S, which was discontinued more >>> than 10 years ago. Its improved replacement is the Finder 40.62.7.024.4000. >>> >>> But that modern relay has also been discontinued for a while. They're >>> available from places in UK and poland, to be shipped in 2023 and with >>> exorbitant shipping prices. >>> >>> I found one "new old stock" from radwell. $5 for the relay, then $15 >>> service fee and $10 shipping. >>> >>> Plan was to get my local phone repair store to replace the relay, but >>> then what caused the relay to fail? >>> >>> Luckily I came across "Boyt Enterprises", I emailed Mr Boyt and he >>> explained it was probably a bad capacitor that caused the relay to be nuked. >>> >>> I took it to Boyt who swapped the burned relay for my new one, he also >>> replaced the capacitor with a new higher temp rated unit that should last >>> 4x as long. >>> >>> FWIW my capacitor had ZERO capacitance. >>> >>> Understand... the control board receives AC signal. There's a diode that >>> cuts off the bottom of that signal, then it goes to the capacitor that >>> charges on positive signal, then discharges during the quiet time where the >>> negative signal used to be, thus producing a sort of DC current. Well... >>> when the capacitor has stopped working the downstream receives the signal >>> from the diode, essentially a 60HZ ac signal. The relay gets this ac signal >>> and fip-flops at 60 hz. The pump and steam fill solenoid received that 60 >>> hz signal. Everyone is buzzing like crazy at 60 hz because they are getting >>> turned on and off at 60 hz, instead of receiving a steady dc signal out of >>> the capacitor. >>> >>> The first thing to fail in my case was the relay on the control board, >>> can see how its burned and the contact is actually welded in place for >>> steam fill. When the relay got welded the control board could no longer >>> switch from steam fill to steam heat, so filled and then just sat there. >>> Worse would be if relay welded itself the other way, then I'd have power to >>> steam element but tank not filled... there might be protection but maybe >>> not. >>> >>> So we're clear what is being discussed, here is my giemme control board. >>> It lives just below my gicar pid. >>> >>> [image: giemme3.jpg] >>> >>> Here is the control board with my new relay and Boyt's capacitor >>> installed. He tested the transformer (brick on the left) and it was fine. >>> >>> [image: giemme2.jpg] >>> >>> Top view: >>> >>> [image: giemme_outside.jpg] >>> >>> Again. If your machine is making a horrible buzzing sound. STOP. Don't >>> use it. Get that capacitor replaced or you'll burn out your relay. >>> Capacitors are still easily available and are like 25 cents, and capacitors >>> wear out. You can test your capacitor if your DMM has a capacitor test >>> feature (mine doesn't.). >>> >>> Boyt also said "Radwell is the worst place in the world to buy relays." >>> He said he sources a better one that supports higher current and it costs >>> him about $2 per. >>> >>> End of the day: >>> >>> Reassembled machine just now with repaired control board and... perfect. >>> Steam fill is 'quiet' now and steam heat light came on as soon as fill >>> completed. >>> >>> -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/brewtus/fddc7b30-4259-4b34-b65f-6d1e0534be2en%40googlegroups.com.
