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    guyinsb's Avatar
    guyinsb Posts: 11, Reputation: 1
    New Member
    		  
    #1

    Sep 16, 2011, 09:03 AM
    Can this old General Controls millivolt gas valve be replaced?
    I have an old General Controls millivolt gas valve:
    Https://picasaweb.google.com/112652995081934659158/GardenHeating#5515080849589233618

    The valve is starting to operate erratically (sometimes does not come on until I tap it).
    Can someone recommend a replacement? Thanks.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Sep 16, 2011, 04:53 PM
    I would start by replacing the thermopile. When they get weak, it will cause problems with gas valve operation.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #3

    Sep 16, 2011, 05:11 PM
    I agree with mygirlsdad77. A weak thermopile or a dirty pilot burner will give you a erratic gas valve operation. Its hard to say with out testing the millivolts. Yes millivolt gas valves and thermopiles are still available.
    guyinsb's Avatar
    guyinsb Posts: 11, Reputation: 1
    New Member
    		  
    #4

    Sep 16, 2011, 05:24 PM
    I guess that is worth a try; but the current thermopile is at most 3 years old (possibly less).
    The valve is probably 50 years old. I would like to have a spare valve available in any event.
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