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Old 12-23-2009, 11:02 AM   #1
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Hot Water Baseboard Issues...


Just bought a house and noticed that not all the baseboards are getting hot. The boiler is about 9 years old. I went around to all the baseboards and opened the bleeders to let any air out that may have been trapped. Should there always be pressure and water in the system? It appears that when the system is not running and I open the bleeder, I get neither air or water out of the bleeder. I'm not sure what that means or if its normal. Also, it almost sounds like the system completely drains after each heating cycle which does seem normal to me. Any advice or troubleshooting steps prior to calling a technician would be greatly appreciated. The home is a large ranch and all heating is on just one floor.

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Old 12-23-2009, 11:10 AM   #2
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Hot Water Baseboard Issues...


Not enough water/water pressure in the system.
Your auto water feed may be bad. Or a manual shut off valve closed(and should be).

See what pressure the boiler is at. Add water pressure to 12 PSIG. Bleed baseboard, until you get water only. Repeat until all baseboards bleed water only.

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Old 12-23-2009, 11:12 AM   #3
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Hot Water Baseboard Issues...


The system should hold 12psi even with the boiler turned off, correct?
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Old 12-23-2009, 11:17 AM   #4
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Hot Water Baseboard Issues...


As long as nothing is leaking. Yes.
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Old 12-23-2009, 11:20 AM   #5
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Hot Water Baseboard Issues...


So should I add water with the furnace turned off or on? Should I then bleed the radiators when the furnace is on or off? Thanks for the quick response.
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Old 12-23-2009, 02:02 PM   #6
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Hot Water Baseboard Issues...


Add it while its off.
Bleed while off also.

After you get all the air out, and only water comes out. Run the heat. And then recheck all baseboards.

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