heating help please

[daveac]

Hi just after some advice

The elderly lady next door has had her bath room re tiled . The guy who did it removed the rad to tile behind it . he did not drain the system just closed the valves and removed it . After the tiling was done he put it back refilled the rad via the boiler .

The guy who refitted the rad has buggerd off and left this poor woman in the **** !

The problem is that now that two rads at the front of the house dont heat up . these are at the front of the living room and in the hall . they are on there own drops from the ceiling .

The system is run from a combi boiler , the hot water is fine and the rest of the rads seem to be heating up ok .

The boiler is getting up to temp then cutting out quite a lot
The boiler is a vaillant turbo may 824

Right here is what i've tryed to sort the problem

1. turned off all the working rads and ran the system.
nothing

2. turned off all the working rads and bleed a load of water out .
and nothing .

3. i also opened the filling loup a little bit and drained more water out of the rads

4 ive blead all the rads to . ive drained out about a 2 washing up bowls of water from each rad then refilling back up to about 1.5 bar

im thinking that there is an air lock or a blockage in the system .

 

[jon26]

Hi just after some advice

The elderly lady next door has had her bath room re tiled . The guy who did it removed the rad to tile behind it . he did not drain the system just closed the valves and removed it . After the tiling was done he put it back refilled the rad via the boiler .

The guy who refitted the rad has b*****r off and left this poor woman in the s**t !

The problem is that now that two rads at the front of the house dont heat up . these are at the front of the living room and in the hall . they are on there own drops from the ceiling .

The system is run from a combi boiler , the hot water is fine and the rest of the rads seem to be heating up ok .

The boiler is getting up to temp then cutting out quite a lot
The boiler is a vaillant turbo may 824

Right here is what i've tryed to sort the problem

1. turned off all the working rads and ran the system.
nothing

2. turned off all the working rads and bleed a load of water out .
and nothing .

3. i also opened the filling loup a little bit and drained more water out of the rads

4 ive blead all the rads to . ive drained out about a 2 washing up bowls of water from each rad then refilling back up to about 1.5 bar

im thinking that there is an air lock or a blockage in the system .

You could be right... do the two rads at the front of the house get warmish or hot at all or are they stone cold??

 

[daveac]

the feed pipes do get warm but only up to the rad . the rad is stone cold

 

[shambolic]

May be simple may be a stupid suggestion but have you tried the lockshield valve side of the rads?
Some plumbers will shut off the flow and return to all the rads when doing work to save draininf full system(he may have not opened them up again) This means you could get heat to the flow pipe but little or no heat in the rads)

 

[daveac]

ha ha not stupid . yes ive opend the valves on both sides of the rads

 

[grahamderek]

take the heads off the TRVs, and make sure the pins are free.
close down all but one rad and turn on the boiler, with the CH temp turned low.
If none of that works you have a blockage, probably unconected to the work done.

 

[daveac]

i will give that a go but one of the rads has no trv as its in the hall next to the stat
oh and it seems that the trvs are on the return sides of most of the rads . it was fitted by a goverment scheme to keep the elderly warm

 

[poolebybirth]

take the heads off the TRVs, and make sure the pins are free.
close down all but one rad and turn on the boiler, with the CH temp turned low.
If none of that works you have a blockage, probably unconected to the work done.

don't turn the CH (room stat) temp down low or the water won't circulate! the stat will tell the pump/boiler it is SATISFIED

 

[nickso]

take the heads off the TRVs, and make sure the pins are free.
close down all but one rad and turn on the boiler, with the CH temp turned low.
If none of that works you have a blockage, probably unconected to the work done.

don't turn the CH (room stat) temp down low or the water won't circulate! the stat will tell the pump/boiler it is SATISFIED

]

moron

 

[poolebybirth]

how am i a moron you idiot.

 

[nickso]

he meant to turn down the ch temp at the boiler so it wouldnt overheat if blocked or airlocked.

 

[poolebybirth]

well the poster should have said the boiler stat temp, it wasn't clear, how can someone understand what to do and do it correctly written like that. And anyway the boiler temp isn't just the CH temp it is also the temp the HW cylinder coil gets heated too. So very confusing...

 

[nickso]

well the poster should have said the boiler stat temp, it wasn't clear, how can someone understand what to do and do it correctly written like that. And anyway the boiler temp isn't just the CH temp it is also the temp the HW cylinder coil gets heated too. So very confusing...

its a combi you moron

it was clear to everyone else and the OP didnt ask for clarification.

 

[poolebybirth]

you can still have a HW cylinder with a combi.

Anyway people shouldn't be fiddling with boilers unless they are CORGI and trained to do so. it could be fatal.

 

[nickso]

you can still have a HW cylinder with a combi.

Anyway people shouldn't be fiddling with boilers unless they are CORGI and trained to do so. it could be fatal.

now i know its a p.isst.ake, go away dr drivel or whatever comedian you really are.