steam heating system not working

Old 11-08-12, 08:56 PM
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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.
Old 11-08-12, 09:02 PM
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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
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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
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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?

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