Water heater - air in the system- purging?

Al Letellier_9

Your diagnosis of the problem seems right on. Contact your service company or an independent heating professional to help you out. Anyone with the right attitude will listen to you about your problem and what you've tried to do, and then can show you the right proceedure for venting or purging the air out of the system.

<A HREF="http://www.heatinghelp.com/getListed.cfm?id=248&Step=30">To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"</A>

Tim Perl

Problems with air in the system - hot water boiler/baseboard

We live in a 2 floor center colonial home with hot water heating/baseboard. I have 3 zone heating with control valve on the return.
Each floor has 2 loops joined just before entering in the solenoid valve, on the return, entering the pump.
A strange thing is going on: upstairs one loop is working and the other one it doesn't. I tried to purge the air but I was not capable. I need help to find out what do I need to do.
It sounds like there is an air plug in the pipes and unfortunately i do not have an air vent to purge the air at the highest point. I have an air vent on the loop that works.

Tim Perl

Case closed

Thank you for the advice. I contacted a plumber that had installed in my house previously a whole new zone. He managed to purged the air and now we have heat. I still do not understand what is the proper way. He did it while I was not home.