I have a three year old Potterton Suprima and have been advised that it is failing to ignite on occassions due to kettling and furring and should be replaced. This sounds like a drastic (and expensive) solution. Is this necessary? Should these problems have been picked up when it was last serviced three months ago?
Kettling and furring
- Thread starter 346kge
- Start date
maybe it should have and maybe not, not really a service thing i would have said
dont replace the whole thing, try some fernox boiler silencer first and if that dont work change the heat exchanger ( really easy job) and powerflush the system,
i will be cheaper than replacing it in my opinion
dont replace the whole thing, try some fernox boiler silencer first and if that dont work change the heat exchanger ( really easy job) and powerflush the system,
i will be cheaper than replacing it in my opinion
N
noonespecial
346kge said:
What are your actual problems - when and under what conditions does it fail to ignite? And what do you mean by it fails to ignite?
Kettling would only occur after the boiler has been alight for some time and that will not cause ignition to fail
Likewise firring will not cause a boiler to fail to ignite
Kettling is usually a by -product of firring
Firing and kettling is caused by problems INSIDE the heat exchanger.
Until the boiler has ignited it does not know whats INSIDE its heat exchanger.
Failing to ignite and locking out are caused by failures of the PCB, ignition electrode or gas valve.
Question the competence of whoever told you otherwise!!!
Tony Glazier
Until the boiler has ignited it does not know whats INSIDE its heat exchanger.
Failing to ignite and locking out are caused by failures of the PCB, ignition electrode or gas valve.
Question the competence of whoever told you otherwise!!!
Tony Glazier
and, distressingly for their unfortunate owners, failures to ignite are something that a lot of Suprimas do! See comments here about Suprima PCBs / electronics.
noonespecial said:346kge said:
What are your actual problems - when and under what conditions does it fail to ignite? And what do you mean by it fails to ignite?
Kettling would only occur after the boiler has been alight for some time and that will not cause ignition to fail
Likewise firring will not cause a boiler to fail to ignite
The boiler mate is calling for heat (and we know this is working as it should as it has been checked), and the boiler tries to respond, but already thinks the required water temperature has been reached, and so either does not ignite, or only stays ignited for a few seconds. We were told the furring in the pipes has caused this (not sure how, unless the limescale retains the heat, keeping the pipes hot). Previous ignition problems were solved by replacing the pcb just 3 months ago, and it did work fine for a few weeks before developing this problem.
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