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Author Topic: Viessmann Boiler pcb failure  (Read 6808 times)

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Sir Tigger KC

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Re: Viessmann Boiler pcb failure
« Reply #15 on: 20 March 2018, 19:15:16 »
Quote from: Kevin Wood on 20 March 2018, 17:21:50
Quote from: Sir Tigger QC on 20 March 2018, 14:07:00
Quote from: Kevin Wood on 20 March 2018, 11:18:06
Quote from: Shackeng on 20 March 2018, 11:04:34
Quote from: Kevin Wood on 20 March 2018, 09:44:19
Yep, they use cheap components and poor soldering techniques then mount the board where it gets hot. Replace the electrolytics with decent quality 105 C rated parts and check for cracked solder joints on the PCB, particularly on the heavy components like relays and transformers and it'll probably never give any hassle again.

To be fair to Viessmann, due to the design, these boards don't get very warm, and given the quality of the construction of the rest of the boiler, I guess I'm just unlucky. :y

I was speaking in general based on the boilers I've worked on. If the rest of the boiler is bomb proof, it makes sense to keep a spare board to future proof it. :y

Not thinking of a Potterton Profile perchance?  ;D
Well, now you mention it...  ::) Did you have a PCB you wanted me to repair, BTW?

Yes I must dig it out.  The current one has been doing fine for a while, so must be due for self destruction sooner than later.  ::)
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Kevin Wood

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Re: Viessmann Boiler pcb failure
« Reply #16 on: 20 March 2018, 19:17:36 »
Can't remember when mine last failed but it must have done at least 10 years now on the better quality capacitors.

I'll give you a shout next time I'm over. :y
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Shackeng

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Re: Viessmann Boiler pcb failure
« Reply #17 on: 20 March 2018, 19:20:07 »
Do you fancy having a look at mine Kevin?
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STEMO

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Re: Viessmann Boiler pcb failure
« Reply #18 on: 20 March 2018, 19:41:57 »
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?
I beg your pardon?  :o
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Kevin Wood

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Re: Viessmann Boiler pcb failure
« Reply #19 on: 20 March 2018, 20:02:25 »
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?

I can do. Not come across a Viessmann before but I can check it for anything obvious if you like?
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Re: Viessmann Boiler pcb failure
« Reply #20 on: 20 March 2018, 20:09:11 »
Quote from: STEMO on 20 March 2018, 19:41:57
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?
I beg your pardon?  :o

Kevin will be fiddling with everyone's before long!  :D  ;D
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STEMO

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Re: Viessmann Boiler pcb failure
« Reply #21 on: 20 March 2018, 20:10:52 »
Quote from: Sir Tigger QC on 20 March 2018, 20:09:11
Quote from: STEMO on 20 March 2018, 19:41:57
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?
I beg your pardon?  :o

Kevin will be fiddling with everyone's before long!  :D  ;D
Form an orderly queue, Doctor Kevin is just putting the gloves on.
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Kevin Wood

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Re: Viessmann Boiler pcb failure
« Reply #22 on: 20 March 2018, 20:11:10 »
Quote from: Sir Tigger QC on 20 March 2018, 20:09:11
Quote from: STEMO on 20 March 2018, 19:41:57
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?
I beg your pardon?  :o

Kevin will be fiddling with everyone's before long!  :D  ;D

 ::)
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STEMO

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Re: Viessmann Boiler pcb failure
« Reply #23 on: 20 March 2018, 20:12:58 »
Quote from: Kevin Wood on 20 March 2018, 20:11:10
Quote from: Sir Tigger QC on 20 March 2018, 20:09:11
Quote from: STEMO on 20 March 2018, 19:41:57
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?
I beg your pardon?  :o

Kevin will be fiddling with everyone's before long!  :D  ;D

 ::)
Oh you don't get away with it that easy. Pervert.  ;D
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Shackeng

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Re: Viessmann Boiler pcb failure
« Reply #24 on: 20 March 2018, 22:36:44 »
Quote from: Kevin Wood on 20 March 2018, 20:02:25
Quote from: Shackeng on 20 March 2018, 19:20:07
Do you fancy having a look at mine Kevin?

I can do. Not come across a Viessmann before but I can check it for anything obvious if you like?

Trouble is, I can't get the plastic cover off, as it comes as a complete control panel. I'll keep trying and let you know. :y
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