Heating, insulation, ventilation, VMC, cooling ...Okofen Pelematic 2005 boiler calculator crash

Heating, insulation, ventilation, VMC, cooling ... short thermal comfort. Insulation, wood energy, heat pumps but also electricity, gas or oil, VMC ... Help in choosing and implementation, problem solving, optimization, tips and tricks ...
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fbedon
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Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 05/10/20, 13:37

Hi everybody,
I duplicate my subject from forum Futura, if it's forbidden or unnecessary tell me.
Voila, after a decade of good and loyal service, my boiler is doing its own thing, the calculator part crashes after a few seconds, sometimes a little more. I suspect a DC voltage supply issue, but I can't see the test points.
I am looking for advice or documents (diagram, instructions, photos ...) to check or repair the CMP card (version 1.2) and / or documentation of communication via the RS232 serial link (it causes in conversational mode at 19200 bauds )
Thank you all.
Fred from Grenoble
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phil59
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby phil59 » 05/10/20, 19:28

Already see if you do not see swollen condos ....
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 05/10/20, 20:56

thank you, yes it's already done.
they are impeccable just like the 5V and 24V during start-up.
I found the bios battery at 0V, that could explain the crashes, but it is not better with a new battery.
what trick to use to reset bios? I can't find any PC type jumpers.
I unplugged the peripherals one by one, nothing better.
I will try to visualize the clock and reset it at the oscilloscope.
other ideas?
Fred from Grenoble
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 05/10/20, 22:03

Here is the photo of the full card
Attachments
PA050002.JPG
CMP1.2 OKOFEN card
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phil59
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby phil59 » 06/10/20, 18:39

New battery does not mean that the "bios" is set correctly.

On a pc or server, when the battery is dead, for example, the pc no longer knows whether it has a hard drive or not ... You have to "tell" it again, and save it ....

Do you hear the relay switch on?
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 06/10/20, 21:50

Hello,
yes from time to time the boiler even starts a start-up.
I took out the card and made tests on the table, it crashes a lot less! I manage to let it run for a good hour without worry if I don't touch anything.
There are 4 error messages related to missing probes and contacts, and the program does not want to go further.
But from one start to the next it finds me the history of faults and does not waste time, it is rather a good sign.
I will make connector plugs with resistors or bridges to pass this step.
Serial link side I am entitled to other messages not very meaningful, a small doc detailing the possible commands would be a serious plus.
I also intend to change all the condos, what more can I do while waiting?
thank you to all
Fred
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 08/10/20, 11:44

Hello,
among the pro of these boilers, no one has heard of what plugs into the serial link?
Thank you
Fred
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 10/10/20, 12:52

Hello everybody
I knew this forum more alive, no one can give me the password for level 2 of the parameters again, no one has a clue of what plugs into the serial link? Come on, I insist anyway, who would have the files and the necessary method to reflash the firmware (CMP 1.2)?
thank you to all
Fred
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Christophe
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby Christophe » 10/10/20, 15:19

Personally, not having okofen, I can't help you ...

For your note, inevitably the majority of Internet users swear by fb and youtube ... difficult to fight ...

It's not the fault of not having warned you (that you have to do a minimum of advertising for this forum...) ... now you can always try to find the high quality news and exchange that we had here ...

"Good luck" ! : Cry: : Cry: : Cry:
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Ce forum helped you? Help him too so that he can continue helping others - LET'S IMPROVE OUR EXCHANGES ON THE FORUM - Publish an article on Econology and Google News
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fbedon
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Re: Okofen Pelematic 2005 boiler calculator crash

Unread Messageby fbedon » 11/10/20, 17:09

Thank you Christophe,
it's all very sad.
Is there no one to contradict him?
Fred
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