Ask the Question Forum Index Ask the Question
FREE question and answer forums in a variety of subjects
 
 FAQFAQ   SearchSearch   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

air sucked in via radiator

 
Post new topic   Reply to topic    Ask the Question Forum Index -> Ask the Plumber
Author Message
jonboy



Joined: 23 Mar 2008
Posts: 5
Location: essex
PostPosted: Sun Mar 23, 2008 6:29 pm    Post subject: air sucked in via radiator Reply with quote
heating was working,but a couple of rads upstairs felt as though they needed bleeding. the hissing of air was air being sucked in. now heating is off as pump makes a racket, as there is more air in the system now.
what can i do?any advice appreciated.
Back to top
thescruff
Moderator


Joined: 03 May 2003
Posts: 4164
Location: Bath
PostPosted: Sun Mar 23, 2008 7:45 pm    Post subject: Reply with quote
Information is what we need.

Never bleed the rads with the pump on.

do you need to top the boiler pressure up
Back to top
jonboy



Joined: 23 Mar 2008
Posts: 5
Location: essex
PostPosted: Sun Mar 23, 2008 10:13 pm    Post subject: re air in rad. Reply with quote
thanks will check boiler pressure.
Back to top
jonboy



Joined: 23 Mar 2008
Posts: 5
Location: essex
PostPosted: Sun Mar 23, 2008 11:01 pm    Post subject: Reply with quote
regards to info, its a open vented system, water trickles out of downstairs rad but upstairs bathroom rad sucks air in when bleeding, system is off when doing this?
Back to top
thescruff
Moderator


Joined: 03 May 2003
Posts: 4164
Location: Bath
PostPosted: Sun Mar 23, 2008 11:21 pm    Post subject: Reply with quote
OK, check the header tank has water in it rirst
Back to top
jonboy



Joined: 23 Mar 2008
Posts: 5
Location: essex
PostPosted: Mon Mar 24, 2008 8:39 am    Post subject: Reply with quote
header tank is full, switched pump on this morning sounds better, air must of moved a bit during the night, but still not heating rads, boiler only lights up when thermostat is turned up to high,i wonder if this is air lock will find its way out over time,?
Back to top
Yellowman



Joined: 03 Jan 2008
Posts: 60
Location: Sussex
PostPosted: Mon Mar 24, 2008 12:10 pm    Post subject: Reply with quote
It sounds like its not filling properly from the header tank. Which could be due to an airlock or a blocked cold feed.

How competent are you because you could try backfilling the system to remove any blockage or an airlock
Back to top
jonboy



Joined: 23 Mar 2008
Posts: 5
Location: essex
PostPosted: Mon Mar 24, 2008 8:46 pm    Post subject: Reply with quote
have now refilled system as you suggest, all rads working,to get me by, but when draining system water from header tank never became empty, and yes supply was switched off, will check this out in the summer! what a day.....thanks for your responce
Back to top
thescruff
Moderator


Joined: 03 May 2003
Posts: 4164
Location: Bath
PostPosted: Mon Mar 24, 2008 9:02 pm    Post subject: Reply with quote
Looks like the cold feed is blocked in that case
Back to top
Yellowman



Joined: 03 Jan 2008
Posts: 60
Location: Sussex
PostPosted: Tue Mar 25, 2008 12:02 am    Post subject: Reply with quote
You want to get it sorted sooner really because it can push water outthe vent into the header tank ands you can risk pulling air back in that way. At least I think.

Scruff im sure will correct if i'mwrong
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Ask the Question Forum Index -> Ask the Plumber All times are GMT
Page 1 of 1

 




Powered by phpBB © 2001, 2005 phpBB Group
Credit Cards | Consolidation Debt | Magazine Subscriptions | Mortgage Loans | Mobile Phone