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    jwjones50's Avatar
    jwjones50 Posts: 1, Reputation: 1
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    #1

    Nov 13, 2010, 07:47 AM
    Old gas heater won't turn on?
    I have a Monogram Industries gas heater from the 1969 era model # B 1069 Serial # C 17781. Heater has been working fine for 40 Years I turn it on recently and it still worked fine. Pilot light is on but when I turn the termostat up the heater will not turn on. Any Ideas? Other than it's to old
    medic-dan's Avatar
    medic-dan Posts: 321, Reputation: 23
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    #2

    Nov 13, 2010, 12:35 PM

    Try bypassing the thermostat. It may have failed.

    Usually you'll see a small spark on a mercury thermostat when the contact makes/breaks. Do you see that?
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