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Posted to uk.d-i-y
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Repaired boiler PCBs - invalid insurance?
On 13/05/2016 13:05, wrote:
On Friday, 13 May 2016 11:51:44 UTC+1, Fredxxx wrote:
On 13/05/2016 11:16, tabbypurr wrote:
On Friday, 13 May 2016 10:00:39 UTC+1, Fredxxx wrote:
On 13/05/2016 05:58, Rod Speed wrote:
"Dave Plowman (News)" wrote in message
...
In article ,
Brian Gaff wrote:
I'd just not mention it and assume it was fine. After all all the pcbs
have to be the same whether repaired or new, if the circuit was
dangerous then the device would be dangerous no matter what pcb was in
it.
ISTR Geoff, who owns a company which repairs such things, saying that
over
a period of time you get to know what things fail on a particular make,
but is not allowed to improve the design by using uprated parts. It
has to
be repaired like for like.
Who did he claim wouldnt allow that ? No one gets to not allow that.
In order to get Gas Council (not sure if its still called this) approval
you have to submit a technical file of the boiler concerned.
Any change would invalidate that certification.
do you need such approval for a used boiler?
If you can install an old boiler past building control, then I suspect
it will already have get a Gas Council certificate.
What I meant was do you really need GC approved parts to fit to an old boiler.
And of course a 600v capacitor is specced to do 400v, so is upgrading from 400v to 600v (eg) really a problem.
I take your point, the issue is that some parts of a boiler are deemed
safety critical. A whole PCB may be such an item where the manufacturer
has no intention of it being repairable.
In your example, you might have found that the capacitor was originally
selected with a manufacturer in mind with a set of specifications. How
do you know the one you are replacing it with has the same performance?
Voltage rating is just one aspect of a specification.
If the capacitor has the same manufacturer's part number as the
original, then you are truly replacing like with like. I imaging people
like Geoff have to tread a careful line.
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