Results 1 to 8 of 8
Plumbing & Plumbers Forum - few rads not heating up
few rads not heating up
Discuss few rads not heating up in the Central Heating Forum at Plumbers Forums; hi i've just installed a new heating system in a 3 storey house. its a indirect sealed system im not getting any heat to the rads at the end of ...-
20-12-2010 #1New to Plumbing Forum
- Join Date
- Oct 2010
- Posts
- 14
- Thanks
- 0
- Thanked 0 Times in 0 Posts
few rads not heating up
hi i've just installed a new heating system in a 3 storey house. its a indirect sealed system im not getting any heat to the rads at the end of the runs. could an air lock be causing these rads not to work? rads at the core of the run are hot. the flow pipe is piping hot between the boiler and cylinder but the return line is not that hot near the boiler? why is the system not circulating properly? don't think there is a problem with the pump. any ideas would be greatly appreciated
-
20-12-2010 #2uɐɯ sɐƃ moderator
- Join Date
- Jan 2010
- Location
- maesteg,south wales
- Posts
- 13,314
- Thanks
- 827
- Thanked 1,264 Times in 1,207 Posts
Re: few rads not heating up
try turning the working ones off,if that fails drain trough returns until hot
GASMAN
fear keeps you alive
fearless gets you killed
IMPORTANT: Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.
GSR?want gas safety or boiler repair advice?we will check out that your genuine via the gas safe website,so please dont be offended when we ask for your details
diyers,potchers,odd job people and have a go heroes need not apply
BAXI/POTTERTON INSTALLER/SERVICE ENGINEER
land rover equipped,you can go faster,i can go anywhere
-
20-12-2010 #3Plumbers Arms member
- Join Date
- Dec 2010
- Location
- redcar & cleveland
- Posts
- 431
- Thanks
- 8
- Thanked 38 Times in 37 Posts
Re: few rads not heating up
try turning all rads off apart from the ones that are cold to try and push the heat to them
-
20-12-2010 #4New to Plumbing Forum
- Join Date
- Oct 2010
- Posts
- 14
- Thanks
- 0
- Thanked 0 Times in 0 Posts
Re: few rads not heating up
done that and they start to warm up but as soon as you turn the other rads back on they cool down again.
-
20-12-2010 #5Plumbers Arms member
- Join Date
- May 2009
- Posts
- 7,303
- Thanks
- 218
- Thanked 681 Times in 604 Posts
Re: few rads not heating up
have you got pipe sizes right ?
What size pump is fitted ?
-
20-12-2010 #6New to Plumbing Forum
- Join Date
- Oct 2010
- Posts
- 14
- Thanks
- 0
- Thanked 0 Times in 0 Posts
Re: few rads not heating up
pipe sizes are correct 22mm and branches to 15mm to feed maximum 2 rads. pump is built in to boiler vaillant eco tech plus 630
-
20-12-2010 #7Super Plumbing Forum Contributor
- Join Date
- May 2010
- Location
- cockney born and bred now living in Essex
- Posts
- 1,911
- Thanks
- 133
- Thanked 221 Times in 219 Posts
Re: few rads not heating up
suggest the system needs to be balanced as cold rads get hot when hot rads shut down
regards turnpin
-
20-12-2010 #8fuzzyGuest Re: few rads not heating up
yeh sounds like a balancing prob if the pipe sizes are right
Reply With QuoteSimilar Threads
-
rads still not heating, help
By curly in forum Plumbing ForumReplies: 12Last Post: 06-12-2010, 11:07 PM -
rads not heating upstairs
By bedspoolplayer in forum Central Heating ForumReplies: 4Last Post: 25-10-2010, 06:12 PM -
New system, rads not heating up
By jim.allwood in forum Central Heating ForumReplies: 6Last Post: 22-10-2010, 08:51 PM -
rads getting warm when heating is off!!
By handy in forum Plumbing ForumReplies: 5Last Post: 28-09-2009, 09:31 PM -
Rads not heating up
By Matty A in forum Central Heating ForumReplies: 7Last Post: 07-03-2008, 02:17 AM
Plumbing Down Under
1 Minute Ago in Plumbing Forum