steam heating system not working


Old 11-08-12, 08:56 PM
Thread Starter
Join Date: Apr 2006
Location: MA, USA
Posts: 88
Received 0 Votes on 0 Posts
steam heating system not working

I have a steam heating system with 4 radiators on the 2nd floor. Boiler is in the basement.
I replaced a oil boiler with gas boiler.

now 1 of the radiators is not working properly. Sometimes it works and sometime it does not. Sometimes water come out of the radiator. Boiler water level swinging up and down a lot when it starts. Boiler controller blinking red light when it stop working. I don't see automatic water feeder anywhere.
Sponsored Links
Old 11-08-12, 09:02 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,540
Received 508 Votes on 478 Posts
A make and model of boiler would be a big help to start as would several pictures of your plumbing around the new boiler.
Old 11-09-12, 10:17 PM
NJT's Avatar
NJT is offline
Join Date: Oct 2006
Location: USA
Posts: 23,539
Received 3 Votes on 2 Posts
Was the boiler properly 'skimmed' after installation?

You need to buy and read this book:

Heating Help

Written in layman's terms, very understandable and FUN to read.

How long ago was the boiler installed? You should probably call back the installer.
Old 11-10-12, 12:39 AM
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,493
Received 33 Votes on 25 Posts
Lay a carpenter's level on the top of the non-heating radiator. It should be very slightly tipped so that the steam inlet valve end is lower than the air vent end. You MUST always have the valve either fully open or fully shut. Does the air vent work?

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: