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Honeywell L408J 1009 Vaporstat Failures

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Comments

  • Gordo
    Gordo Member Posts: 857
    I suspect that the diaphragm is not not being sealed around the edges properly and that is allowing pressure to leak away, drawing in non-compressible water into the diaphragm space.
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
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  • neilc
    neilc Member Posts: 2,784
    how does it matter that water (or oil, or air) is under the diaphram, it still pushes up, right?
    isn't this just like a pressure reducer diaphram doing its same thing?
    or is this that the sensitivity of ounces isn't transmitted well thru the water?
    without a gage there telling us otherwise I'm guessing we're just leaking and not building pressure at the trol.
    known to beat dead horses
  • Double D
    Double D Member Posts: 447
    I just installed a new Honeywell L408J1017, 0-4psi vaporstat today and it makes that popping sound. The last 2 did not make that noise. Should I exchange it or wait and see?
  • dean_20
    dean_20 Member Posts: 16
    Now I'm glad I listened to Steamhead years ago and put a mercury one on my boiler.
    BobC

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