Ideal Classic FF240 Boiler - Cutting Out

[Terrywookfit]

Why is there a fixation on aa blocked cold feed ??

 

[AGAS]

Why is there a fixation on aa blocked cold feed ??

tbh i thought it could be something else as well , I've also had plenty of pumps near on blocked with hard cr@p as well but the cold feed totally clear .

 

[Phill Peck]

Why is there a fixation on aa blocked cold feed ??

Because he's drained down/bled rads and now has no circulation.
Likely there's no water in top half.
Bare in mind most of us a 100+ miles away with no experience of the system.

 

[FiremanT]

Why is there a fixation on aa blocked cold feed ??

Wouldn't call it a fixation. Poor circulation seems to be the issue. One might suspect the pump, but he has already changed that. BCF is more likely than a scaled Hex here.

 

[jarvo]

Any other possibilities will be considered

Pump (9 months old)
Fans working
Electric working, guy said 240v to all components until it cuts out.
Header tank cleaned and ball cock working fine.

Radiators slow to drain.
??

Trying to get another opinion this afternoon, and the pipe cut out / replaced before I replace anything else

 

[Phill Peck]

Is your pumpnin the airing cupboard?

Can you post a picture of your airing cupboard.

Crack top pump union and see if water comes out.

 

[jarvo]

Im at work at the moment but will post some pics later.

Yep the pump is in the airing cupboard.

 

[kidgreen61]

Virtual pint says it's not a boiler fault.

 

[jarvo]

Will send you many pints if you tell me what it is

 

[Terrywookfit]

jarvo....So the boiler fires up and runs for up to 15 mins, then cuts out and the pcb is then arcing ??

 

[jarvo]

Well today's engineer had just left, his diagnosis is it's either the fan or a pressure switch (or possibly both).

He said it's definitely not the cold feed.

I'm totally fed up now, think I'm going to admit defeat and be forced into spending £3k on a new boiler.

Here's the airing cupboard.
And close up of the pump

 

[Crofton Gas]

Air lock at mid position valve, is that push fit cap on the heating pipework?

 

[kidgreen61]

Will send you many pints if you tell me what it is

Thank you, but I only work a 5 mile radius, and you're well out of that.

You need someone with at least half a brain to look at this, the boiler is bomb proof, hence their popularity with gas bods.

If the boiler is firing, and cutting out after several minutes, it is a circ problem, and deffo not fan, and unlikely APS.

It boils my blood, as a gas engineer, that there is so much work available at this time of year, that clueless half wits turn up to repair a simple fault, but because they haven't been given the family brain cell for that day, just spin the "you need a new boiler mate" line.

Having changed the boiler, the fault almost certainly will remain.

Rant over.

 

[Phill Peck]

Ok your getting nowhere with these "engineers"

Did the guy today check that there was circulation

Have you paid them anything? (I hope not)

Turn your boiler on
What gets hot (pipes)
Pump? Radiators?

How quickly does it start banging?

 

[Phill Peck]

If we can't solve this tonight please just ring British gas.
There is no need for you to replace that boiler based on what you've said.