Regular boiler cuts out?

[macka09]

Hi all. What would cause a regular boiler to cut out straight after firing up?

 

[IDCHAPPY]

Regular what? i'm guess you mean open vent? does the pump run? that's about as far as we can go tech wise mate, you know the rules

 

[macka09]

Yes open vent. I suspect the pump has burnt out. Apparently a rad valve went pop on a custards radiator today so her neighbour came round and isolated the tank in the loft so that he could fix the valve. On doing so and refilling the system, she bled the valves and now her boiler keeps going off.

 

[Rickster123]

Yes open vent. I suspect the pump has burnt out. Apparently a rad valve went pop on a custards radiator today so her neighbour came round and isolated the tank in the loft so that he could fix the valve. On doing so and refilling the system, she bled the valves and now her boiler keeps going off.

Because she drained it and left the system running. I'd agree with chappy and say the pumps kaput.

 

[macka09]

I thought as much. As a non gas engineer (yet) would I be able to replace it?

 

[macka09]

I did say if the heating was left running whilst the system was drained it could have burned out the pump

 

[IDCHAPPY]

If the pump is *external* to the boiler, then yes mate

 

[IDCHAPPY]

Either that or an airlock, which is very possible, you need to check if the pump is still spinning

 

[macka09]

I've been asked to look at it in the morning. So gonna check whether the pump is spinning or hot and check whether any air maybe present in the system.

 

[stevetheplumber]

sound like it could be a profile they can take ages to get the air out

 

[GasmanxxxR1]

Air lock

 

[macka09]

I think the boiler is an ideal

 

[macka09]

Went to the custards house today and the pump was scalding hot. Although all the rads bar one was hot and the boiler was running. System was full of air but I couldn't try to balance the system because the house was a fly tip lol. Also opened the screw on the pump and water was present which was boiling.

 

[jtsplumbing]

Did you try and spin the pump with a small screwdriver ? sounds as if its stuck.

 

[macka09]

It was spinning ok. I didn't physically look inside due to the water coming out. Also whilst there I had a call the my sister had been in a crash.

 

[jtsplumbing]

Hope she is OK, not having a good day !!

 

[macka09]

Not really mate. Didn't really wanna leave the customers so abruptly but needs must.
There system was full with sludge which was why he was trying to flush the rads through. The vent above the pump was blocked by sludge I had to poke it through with a nail.

 

[jtsplumbing]

That sounds like its in need of a major overall, makes you wonder how some of these systems ever work, Regards to your sister hope its nothing to serious.

 

[macka09]

She's fine thank you. I did suggest to the customer looking at upgrading the system, but as usual they can't afford it. Even with a new pump I can't imagine how long it would last.

 

[jtsplumbing]

Same old story then we have no money but can you fix it, Do they have new car, 50" tv & a couple of holidays a year ?

 

[macka09]

Not far off. A nice new caravan on the garden lol

 

[jtsplumbing]

Well they can stay in that when heating packs up

 

[AMW]

Not far off. A nice new caravan on the garden lol

They don't like spending money on heating system they or others can't see, they just take it for granted until it goes wrong