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Heating issue: heat is not reaching the second floor thru the wall units

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Raiburnj
Raiburnj Posts: 1
edited October 9 in THE MAIN WALL

I have a Weil-McLain boiler it has a tag on it. CP1310144. It was installed June 5, 1987. The manual says it covers series one and series 2 information.
The valve that goes to the 2nd floor was replaced last week because the hot water was not flowing through the valve for the second floor. now the hot water is flowing through, but there’s still no heat coming to the second floor. What would be the next step to possibly fix?

Comments

  • Ironman
    Ironman Posts: 7,975
    edited October 8

    Uh, you’re gonna have to be more detailed in your description. What valves were replaced? Zone valves? Boiler isolation valves? Radiator valves?

    “hot water was not flowing through the valve for the second floor now the hot water is flowing through, but there’s still no heat coming to the second floor”. This sounds confusing. Please explain more clearly.

    What type of heat emitters do you have?

    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • pecmsg
    pecmsg Posts: 7,634

    Agreed What Valves?

    Was the 2nd floor emitters bleed?

    Who did this work?

  • hot_rod
    hot_rod Posts: 28,699

    Any work that required draining the system would require a good purge on all the zones.

    Zone valve motors could be replaced without a drain down.

    Pictures would add some detail to your question

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 21,328

    Call the person that did the work back and tell them it isn't working.

    The pipes are probably air bound and need bleeding.

    And don't pay them anything additional it should be part of the install.

    HVACNUTBig Ed_4EdTheHeaterMan
  • HVACNUT
    HVACNUT Posts: 7,784

    If you paid someone to do repairs, it should work before payment. If its not working, call them back. It might just be air locked.

    If you did the work yourself, post some pictures.

  • HomerJSmith
    HomerJSmith Posts: 2,837

    Look, you can't have heat without flow. Flow is the train that moves heat energy from one point to another.

    How do you know there is flow or no flow?

    That the new valve is doing the same thing that the old valve did, leads me to suspect it might not have been a valve problem.

    As @Ironman suggests, provide more information.

  • mikefc2026co
    mikefc2026co Posts: 2

    I had a similar head-scratcher with our hot water heat last winter — work done on one zone, water moving, but the upstairs stayed cold. In our case it turned out to be air trapped in the upstairs run after the system was opened. The installer came back and bled the upstairs radiators (there was a surprising amount of air) and that brought the heat right back.

    Echoing what others said: if a contractor did the valve work, I'd have them come back out. The system should be working before you pay for the job, and purging trapped air after a repair is the kind of thing they'd handle as part of the install. If you can, post photos of the valve area and the upstairs emitters — the pros here will spot things fast.

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