Radiators hot upstairs and cold downstairs.

[martinryder]

I know this has been asked before but in different curcumstances

This is a sealed system (pressurised) sytem boiler Glowworm Ultracom about 5 years old. The filling loop failed and it over pressurised and blew off about 3 bar. That fixed the doorstairs rads are stone cold. Upstairs are OK and heat up with 2 mins. The boiler is located downstairs.

I've drained it down serveral times and added F3 cleaner without any joy.

Before I get the expense of a powerflusher can anyone suggest what it make be causing this ?

Many thanks in advance

 

[Dotty]

Sounds more like you need a new pump

Was my first thought.

 

[leethegasman]

I assumed every one on this forum work
In the trade in some way when I first started my own company I told people over the phone what was wrong with there pluming and heating until one night I was on the phone for 1 hour telling the customer how I would fix his heating booked the job in he then rang back the next day to cancel job as he had fixed it with my advice and said thank you.
And so stopped doing this ?
What do the rest of you in the trade do?

 

[PlumbBobBob]

yes we've all fallen for that and now know better lol. i know some on here tell the customer that the problem is something which doesn't exist, which prevents them from fixing it themselves.

 

[leethegasman]

Did have a good one last week no water
To any taps I look under Kitchin sink turns out stop tap was off when I told him he said yes I turned it off so turned back on invoiced if only all jobs where like that

 

[martinryder]

My post appears to of been hijacked by self rightous unhelpful people. I just want positive feedback please. Sorry, can't afford to get any more plumbers in.

 

[TBServices]

My post appears to of been hijacked by self rightous unhelpful people. I just want positive feedback please. Sorry, can't afford to get any more plumbers in.

Better get your old jumpers out of the wardrobe then

 

[martinryder]

I would rather freeze than get another cowboy.

 

[TBServices]

Well if you automatically assume everyone is a cowboy, you probably will freeze. What made you pick the last guy out of everyone else?

 

[martinryder]

Why cant someone actually help. I was not picking on anyone just going by my own experience. To tell someone to get the jumpers out is just not helping the situation so why bother

 

[TBServices]

Because you've actually had the advice, based on the information you provided and you can't solve the problem - you need an experienced engineer.

Also, I refuse to believe even the stupidest plumber would "leave the filling loop open". Maybe it was passing slowly and he didnt notice

 

[AlexGas]

Better get your old jumpers out of the wardrobe then

...
A cowboy (UK slang) - A tradesperson, normally a builder, plumber, roofer etc who performs shoddy work at an inflated price.

 

[TBServices]

View attachment 9408............

Haha, brilliant. Yeeeehaaaa boys!

 

[AWheating]

Why cant someone actually help. I was not picking on anyone just going by my own experience. To tell someone to get the jumpers out is just not helping the situation so why bother

why bother? why bother helping somebody who has the opinion plumbers are cowboys? we all have questions.

its a blockage or lack of circulation due to a poor pump imo. having clean water come out while draining down does not mean the system is clean, a heavily sludged system will drain with cleanish water alot of the time. i would suggest a good plumber/engineer.

 

[Mikuni]

FAO the original OP !
Just came across this. All the suggestions about air locks and faulty pumps are valid. However, (I may have missed this) is this a combi boiler, or a conventional/system boiler that heats water in a cylinder in the airing cupboard? Sadly there are some situations that can't be fully explained and require an expereienced ear and eye to get to the bottom of.

 

[Roger Welton]

I'm not sure what else can be suggested, check the pump is ok, and that you have no airlocks. This should get you going again.

 

[lame plumber]

simple suggestion, drain down, fill again from low level docs, bleed lower rads first and up on high one furthest fm boiler, then bleed pump out and turn on boiler. no luck get an engineer in!