3 zones bled and no heat

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Old 01-08-11, 12:55 PM
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3 zones bled and no heat

I had frozen pipes and made all the repairs and bled the lines, after bleeding the lines i got heat in half the lines in two of the zones and nothing in the other. That only lasted for a few hours and no heat in any of my zones. Please help.
 
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Old 01-08-11, 01:15 PM
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Sounds like you you still have air in the system. What is the pressure on your boiler and the temperature?
 
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Old 01-08-11, 01:19 PM
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Are you sure that there is no ice or slush still in the system? Do you have zone valves or separate zone circulators? How and where did you bleed - did air come out and then a steady stream of water? What does the boiler pressure/temp gauge indicate?

Please post some photos of your system, and point out the repairs you made and the air bleed points. http://forum.doityourself.com/electr...your-post.html
 
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Old 01-08-11, 01:49 PM
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200*F, 100*C.. Not sure what to read on the pressure gage, top says 40 bottom says 70
 
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Old 01-08-11, 01:57 PM
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i have 4 ways to bleed, on per zone and one for all three, i have tried all for ways, i there were spurts of air, then steady stream each time, i can push water thru the lines to make the process faster, i just checked the pressure from last night and it was way low, so i feed more water into the boiler, i can hear water running thru a pipe in the wall now. and the two other zones instintly warmed up.
will take me a bit to get some pics but will do.
 
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Old 01-08-11, 02:54 PM
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Originally Posted by justjett View Post
200*F, 100*C.. Not sure what to read on the pressure gage, top says 40 bottom says 70
I can't make sense out of your pressure readings. Please take a good, close-up photo of the gauge and post it. The relief valve on the system is likely set at 30 psi, so I assume the actual pressure must be below that, or your basement would be full of steam.

What did the pressure gauge read when you decided it was too low? What pressure did you raise it to? And, with a gauge that is evidently either wrong or being misread, I'm wondering what you went by?

200 deg F is a bit too high. What temp is the aquastat set at?

I'm thinking that maybe Monday morning you should call in somebody to check over your work.
 
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