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Gas control valve in water?

partlyleft
partlyleft Member Posts: 22
in Domestic Hot Water

If water rises near the bottom of a gas control valve as shown below by the red line in a flood, is the valve considered submerged and is it compromised?

20240817_033237.jpg

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Comments

  • Mad Dog_2
    Mad Dog_2 Member Posts: 8,079

    Probably not, but no guarantees. Needs to be disconnected, drained, dried out...Another inch......A gas professional with experience shlupd be doing this...serious business Mad Dog 🐕

    Consulting by Mad Dog & Matt Jr.
    partlyleft
  • pecmsg
    pecmsg Member Posts: 6,006

    Why take the chance?

    Change it out.

    partlyleftMad Dog_2
  • ratio
    ratio Member Posts: 3,970

    Depends, are you looking for legally damaged, or actually damaged?

    partlyleftMad Dog_2
  • Steamhead
    Steamhead Member Posts: 17,766

    Change it.

    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    Larry WeingartenpartlyleftMad Dog_2
  • partlyleft
    partlyleft Member Posts: 22
    edited August 2024

    Thermocouple, pilot and main out to burner were all immediately disconnected to remove burner assembly for drying.

    Except for what looked like some old pre-existing corrosion on thermocouple compression nut, No moisture or water noticed...

  • partlyleft
    partlyleft Member Posts: 22
    edited August 2024

    "Actually"

    I see two little wires that look "pressed in" above the thermocouple connection. I'm wondering where/if there are orifices that would allow water entry on the unit.

  • hot_rod
    hot_rod Member Posts: 25,006

    the insulation in the tank must have gotten wet also?

    Salt water? How old is the tank?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    partlyleft
  • partlyleft
    partlyleft Member Posts: 22
    edited August 2024

    The insulation did get wet but only soaked less than an hour or so.

    No salt water, living above 1000 ft.

    I immediately removed the burner assembly and blew it out thoroughly with compressed air.

    Tank is 11 years old.

  • Larry Weingarten
    Larry Weingarten Member Posts: 3,819

    Hi, If this is your own heater, it's your choice. If this were a client's water heater, you could not ethically subject them to the risk.

    Yours, Larry

    partlyleft
  • ratio
    ratio Member Posts: 3,970

    I am not a lawyer, and you should certainly change the valve.

    If the water stopped where the line is, I wouldn't worry about it if it were in my house. If it were Grandma's house, or I was on the clock at work, I'd replace it.

    partlyleft
  • partlyleft
    partlyleft Member Posts: 22
    edited August 2024
    ratio

    Thank you. Yes it is mine.

  • partlyleft
    partlyleft Member Posts: 22

    Can someone tell me what the typical and worst case scenario is when these gas valves are defective from flooding?

  • Mad Dog_2
    Mad Dog_2 Member Posts: 8,079

    Dude...if your calling them "wires" you're not trained or qualified to be working on the gas valve. Not a DIY project. Mad Dog 🐕

    Consulting by Mad Dog & Matt Jr.
  • pecmsg
    pecmsg Member Posts: 6,006
    edited August 2024
    partlyleft

  • partlyleft
    partlyleft Member Posts: 22
    Mad Dog_2

    I have done my own remodel plumbing and installed a gas water heater before with professional sign offs.

    What am I supposed to call them, thermocouple spaghetti, leads?

    Larry Weingarten
  • JUGHNE
    JUGHNE Member Posts: 11,397

    Could they be wires to the "sparker" run by the clicker button on the gas valve to light the piolet?

  • partlyleft
    partlyleft Member Posts: 22
    JUGHNE

    No they are coming from above the thermocouple fitting and run into the control unit.

  • Larry Weingarten
    Larry Weingarten Member Posts: 3,819
    edited August 2024

    Hi, Those wires likely go to a non resettable high limit.
    Yours, Larry

  • partlyleft
    partlyleft Member Posts: 22
    edited August 2024

    Is that for transducer "over-voltage"?

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