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replace Gas control Weil Mclain HE-2 year 1991

inspkerr
inspkerr Member Posts: 32
in THE MAIN WALL

Can anyone recommend a replacement gas control for Weil Mclain 1991 HE - 2 boiler ?

Comments

  • HVACNUT
    HVACNUT Member Posts: 6,952

    Gas control? Gas valve?

    Its a White Rodgers valve. Part number starts with 36C74 - ***. The WM part number is 510 - 811 - ***, but more info is needed before you get the rest.

    Are you an HVAC tech? Why do you need the gas valve? Natural or propane? (Different part numbers) Who checks gas pressure?

  • inspkerr
    inspkerr Member Posts: 32

    Thanks, I was in the field but now retired, its L.P. and been converted from Nat. Gas control sometimes sticks shut , Its a 24 volt control 1991 weil vintage HE-II-3 , The company that fills the tank checks pressure, I have not, perhaps that's a good place to start, was able to get it to start by tapping on gas control have has to do this multiple times. It sometime sits for days in cold weather before starting up again. coming up with 511-044-354 as a part number for replacement valve I am not currently at the property but would like to come there prepared with the gas control if needed Thanks - Paul

  • mattmia2
    mattmia2 Member Posts: 13,862

    did you check with a meter when it didn't fire? is the mv energized? if it has a vent damper, the end switch on that failing is a very common cause of what you describe.

  • inspkerr
    inspkerr Member Posts: 32

    yes there is power to the gas valve , but that's a good point maybe not enough amps ? to open valve

  • mattmia2
    mattmia2 Member Posts: 13,862

    if there isn't enough current the voltage will drop

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