Klarstein Mundschenk power settings

A forum to discuss one pot automated brewing systems.
clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Klarstein Mundschenk power settings

Post by clarets7 » Wed Sep 29, 2021 1:29 pm

How do the Klarstein/Brewdevil/Guten 30L kettles set the different power settings, 100W to 2500W? I've looked at the circuits and it looks like for the lower settings it pulses the smaller element, medium settings the larger element and higher settings maybe the large element is on all the time and the smaller one pulsed?
That's just my interpretation anyway, but the problem is mine has stopped working, seems to be set to full power all the time. The elements can be switched off though, so it's not a case of the relays stuck on, seems to be more likely a problem in the controller which I assume is built into the display. Angel Homebrew do the PCB and display together and look to have one left, but does anywhere do just the display?
"The paradise of the rich is made out of the hell of the poor" - Victor Hugo

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Thu Sep 30, 2021 8:54 am

The short answer is yes.

Most probably uses a ssr.
You cannot turn electric down like gas, so you turn it on /off very quickly. Halt time on & half time off equals 50%. Infinity variable. BUT the chippies don't like full power.... So you use multiple elements.

Sounds like the ssr is busted.
That can (sometimes) been sourced and replaced it you are handy with a soldering iron. If there is room, cut the legs and use stripped 3amp choc blox and screw another on.

clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Re: Klarstein Mundschenk power settings

Post by clarets7 » Thu Sep 30, 2021 10:18 am

I had a look at the PCB and it's the same as the Brewdevil board and display which Angel Homebrewing stock. It uses relays, not SSR's, and I'm sure they are still working as the elements still work, and switch on and off. They are just not being told what to do correctly :(.
The kettle is still under guarantee but Klarstein won't fix it, they either want me to send it back and refund me the price, or I can keep it and they will give me £15!! I've told them the parts will cost me £75 so we'll see what offer they come back with [-o<

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Thu Sep 30, 2021 10:37 am

Why not send it back?

clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Re: Klarstein Mundschenk power settings

Post by clarets7 » Thu Sep 30, 2021 10:41 am

I got it at a 40% discount, depends whether they offer me the price paid back or the current cost on their website - as they refused to replace it I'm pretty sure it's the former :( To be honest I only bought it because it was such a good price, and all the bits I'd bought to build my own were still sitting in the box 3 years later :lol:
"The paradise of the rich is made out of the hell of the poor" - Victor Hugo

User avatar
Cobnut
Drunk as a Skunk
Posts: 759
Joined: Fri Aug 24, 2018 4:23 pm
Location: Ipswich
Contact:

Re: Klarstein Mundschenk power settings

Post by Cobnut » Thu Sep 30, 2021 11:12 am

Surely you have the right to a replacement or repair as well as to a refund?

https://www.which.co.uk/consumer-rights ... TEK2g0YuEy
Fermenting: nowt
Conditioning: English IPA/Bretted English IPA
Drinking: Sunshine Marmalade, Festbier, Helles Bock, Smokey lagery beer, Irish Export StoutCascade APA (homegrown hops), Orval clone, Impy stout, Duvel clone, Conestoga (American Barley wine)
Planning: Dark Mild, Kozel dark (ish), Simmonds Bitter, Bitter, Citra PA and more!

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Thu Sep 30, 2021 11:17 am

Beat me to it. Cost is irrelevant to your rights.

clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Re: Klarstein Mundschenk power settings

Post by clarets7 » Thu Sep 30, 2021 2:33 pm

Totally agree with you Cobnut and Mashbag, but I really can't be bothered to argue too much with them. They upped their offer from £15 to £45 to fix it myself, so I've taken them up on that and bought the complete PCB and display replacement from Angel Homebrew, hopefully that will work and I'll have a brand new PCB left over if anyone needs a replacement.
"The paradise of the rich is made out of the hell of the poor" - Victor Hugo

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Thu Sep 30, 2021 7:02 pm

Result. I understand your thinking.

User avatar
themadhippy
Even further under the Table
Posts: 2951
Joined: Tue Dec 08, 2009 12:53 am
Location: playing hooky

Re: Klarstein Mundschenk power settings

Post by themadhippy » Thu Sep 30, 2021 9:32 pm

I'd be looking for a triac/thyristor on the control board.
Warning: The Dutch Coffeeshops products may contain drugs. Drinks containing caffeine should be used with care and moderation

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Fri Oct 01, 2021 8:22 am

Once it is out, is there chance to investigate & repair to create a backup/spare?

clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Re: Klarstein Mundschenk power settings

Post by clarets7 » Fri Oct 01, 2021 9:33 am

Once it is out, is there chance to investigate & repair to create a backup/spare?
It would be criminal not to :D
"The paradise of the rich is made out of the hell of the poor" - Victor Hugo

clarets7
Piss Artist
Posts: 231
Joined: Sun Sep 16, 2018 8:56 am
Location: Hebden Bridge, West Yorkshire

Re: Klarstein Mundschenk power settings

Post by clarets7 » Wed Oct 06, 2021 7:01 pm

Got the replacement boards from AHB today, and as I suspected it is the controller/display board that is faulty. The control for the relays are two lines direct from the controller, so it can only be something wrong internally in that, or the specific part of the memory dealing with the power settings has been corrupted. The controller is a Nuvaton N76E003AT20 (8051 style), which I have no experience of, or access to any compatible ICP to read the flash memory on it, so at the moment nothing I can do with it. I'll see if I can find one at a reasonable price.
"The paradise of the rich is made out of the hell of the poor" - Victor Hugo

User avatar
MashBag
Even further under the Table
Posts: 2140
Joined: Wed Oct 23, 2013 7:13 am

Re: Klarstein Mundschenk power settings

Post by MashBag » Thu Oct 07, 2021 6:48 am

Good news. You were right and the KM will soon be brewing.👍👍

Sad news. You can't easily fix that.

User avatar
themadhippy
Even further under the Table
Posts: 2951
Joined: Tue Dec 08, 2009 12:53 am
Location: playing hooky

Re: Klarstein Mundschenk power settings

Post by themadhippy » Thu Oct 07, 2021 12:34 pm

The control for the relays are two lines direct from the controller,
Have you traced out the power side of the relays? my guess is the relays are selecting individual elements,and something else is doing the power control,
Warning: The Dutch Coffeeshops products may contain drugs. Drinks containing caffeine should be used with care and moderation

Post Reply