Central heating problem - advice wanted

tonykyte


Joined: 19/04/2008
Posts: 270

Message Posted:
02/12/2009 15:45

We have gas central heating, but the bottom of the radiators upstairs do not get hot, have bleed them no air in the radiators. If we switch off radiators downstairs the one's upstairs will get hot. Anyone know what we can do or know of a good central heating engineer.

robbie c


Joined: 07/07/2008
Posts: 176

Message Posted:
02/12/2009 16:01

Where are you

skybluesam


Joined: 24/12/2008
Posts: 447

Message Posted:
02/12/2009 16:02

Give Stormin Norm a ring, he will sort it out for you.

his number is 05338664715

Nick

robbie c


Joined: 07/07/2008
Posts: 176

Message Posted:
02/12/2009 16:08

Try Dave on 05338403348 x corgi engineer

gates


Joined: 08/12/2008
Posts: 1096

Message Posted:
02/12/2009 16:34

circulation problem try taking large screew out of front see i it is turning if not turn vie slot and close screew if this does not work pump problem need new one

hattikins


Joined: 17/02/2008
Posts: 2793

Message Posted:
02/12/2009 17:11

My husband says your system needs balancing, give him a ring on 0533 8310387 for further information.

Smity



Joined: 14/09/2009
Posts: 826

Message Posted:
02/12/2009 21:29

I agree with msg 6 you need to turn doen the flow to the rads downstairs or get a larger pump

pjnxi



Joined: 12/02/2009
Posts: 167

Message Posted:
02/12/2009 22:12

Hi your system needs N.R.V. on the upstairs . pjnxi.

MUSIN M


Joined: 26/06/2008
Posts: 1352

Message Posted:
02/12/2009 22:33

pinxi

do you mean trv



the problem described could be one of many things ,the system may need powerflushing ,

your pump could be positioned in the wrong place hence creating air which rises.

however it could also be as simple as water pressure ,not having enough water in the system

so before you do anything check the pressure bar and fill to at least 1,5 bars.





musin

pjnxi



Joined: 12/02/2009
Posts: 167

Message Posted:
03/12/2009 00:35

Spot on musin and a N.R.V WITH MIN 1.5 BARS PRESSURE. pjnxi

colly


Joined: 31/07/2008
Posts: 297

Message Posted:
03/12/2009 00:39

Air does not seem to be the problem here. Balancing, as suggested is the first thing to try. If you have disturbed the balancing start by closing the lockshield side of the radiators that are first on the run. This should then push more water through to the other radiators. You may have adjustment left on the pump if it has more than one speed you can turn it up. Is the boiler working effieciently? Does it need a service? Remember that if the boiler is too small on BTU for the size of house then in very cold conditions there will not be enough heat to go around.

Check the water pressure if combi but normally boilers have a cut out when the pressure goes too low, not always the case though.

Never heard of a non return valve being fitted upstairs. If a differential pressure relief valve fitted then it may need adjusting. Forget the previous as I think it most unlikley that anyone would fit one in the TRNC!



Col

racoonchic



Joined: 17/11/2008
Posts: 3223

Message Posted:
03/12/2009 09:07

there could be sludge in the system or the balance btwn upstairs and downstairs could be wrong if its a combi you cant fit a bigger pump as these are integral to the boiler if its a new fault i would suggest a system flush call me 05338384636 and i can talk you through

colly


Joined: 31/07/2008
Posts: 297

Message Posted:
03/12/2009 17:05

Majority of pumps tend to be either a 5m or 6m head. You can replace a 5m with 6m as the size is the same but if the system has been working before with a 5m pump then problem is likley to be elsewhere. A system flush may be a good idea if it is believed that corrosion due to lack of inhibitor fluid has occured. An easy way to test for this is when bleeding a radiator light a match next to the bleed hole, if it lights it is hydrogen and corrosion is occuring.



Col