potterton profile 50 e

[lee03]

can anyone help on this fault that i've had on a potterton profile 50 e, boiler will fire up run up to temperature most time, click off then come back on after a correct period which is fine ,but once in a while it will light up run for 5 mins then, cut out (main burner goes out) pilot stays on (but its auto version) the gas valve has been replaced by myself yesterday & set up correctly 12.5mb & gas rate 18.21kw, the only thing i can think off is a loose connection on pcb ect as pilot solenoid has 237v and main burner solenoid nothing when fault happends,but has 237 when boiler runs fine, i also get a clonking at main burner solenoid when fault happens, any suggestions ??

 

[twgas]

Assuming it's shutting the main burner off at correct temperature I would suspect PCB, as you say not cutting power to pilot solenoid. If it's shutting down before temp reached I would still suspect the PCB.

 

[lee03]

yea it does shut off, but the pilot still stays on, but its intermitten fault

 

[baxpoti]

**********

 

[gassafeman]

***********quote]

You advising opening up the combustion chamber?

Paul.

 

[baxpoti]

He's already changed the gas valve.

 

[gassafeman]

He's already changed the gas valve.

He/she may have, (you only have his/her words to go on) but I thought we were duty bound not to advise DIYers to delve inside the boiler, whether have already done so or not.

Paul.

 

[ollski]

You advising opening up the combustion chamber?

Paul.

Do we have to go to the stupid lengths of putting 'a gas safe engineer could' before every piece of information?, it's on virtually every post and it's getting ridiculous.

 

[kevplumb]

***********

You advising opening up the combustion chamber?

Paul.

Do we have to go to the stupid lengths of putting 'a gas safe engineer could' before every piece of information?, it's on virtually every post and it's getting ridiculous.

only if you get it confirmed by an RGI

 

[baxpoti]

All this info is in the M.I.s handed over with the boiler.

so freely available .

 

[gassafeman]

Well, just advise the OP to use them then

Paul

 

[ollski]

All gas safety information is available in a library, from regulations to fault finding. Assembly and removal of all components is in the instructions which legally has to be handed to the customer on completion and a householder is perfectly entitled to work on their own appliance.

I'm not encouraging anyone to actually work on an appliance but I am defending their right to have the knowledge to.

 

[gassafeman]

All gas safety information is available in a library, from regulations to fault finding. Assembly and removal of all components is in the instructions which legally has to be handed to the customer on completion and a householder is perfectly entitled to work on their own appliance.

I'm not encouraging anyone to actually work on an appliance but I am defending their right to have the knowledge to.

I agree. I am also following forum rules not to advise it. The customer can do what they like as far as I'm concerned, but Im not prepared to 'help them on their way' with this type of job.

If Im 'anal' so be it.

Paul.

 

[baxpoti]

I agree. I am also following forum rules not to advise it..

What rules?

 

[ollski]

If Im 'anal' so be it.

Paul.

Agreed, the nanny state must be protected at all costs!