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Coleman Gravity Floor Furnace need millivolt gas valve & pilot ki

Looking for millivolt gas valve and a millivolt pilot assembly kit for a Coleman Gravity Floor furnace (natural gas). Unit is about 50 years old. Model #2004D. Serial# 16912896. 856 series. 65,000 btu/hr input; 45,500 btu/hr output. Pilot will not stay lit. Coleman quit making unit in the 70's. Trying to see if there are other manufacturer's that make millivolt parts that will be compatible with my unit. Thanks.

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Make : Coleman
Model : 2004D

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Pilot light will not stay lit. Looking for part.

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Go to www.grainger.com and look for a "power pile generator" this is a millivolt thermocouple that may be just what you need to make your heater work again

Posted on Nov 12, 2009

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I have a Coleman Presidential II Model #3118A751, it went out. What parts do I need? can it be fixed?


If it is a 'standing pilot' furnace and it just 'went out'...I would think you need to try to re light the pilot light. If it doesn't re-light, it is probably time for new thermocouple. Presidentials are very tricky to install a thermocouple on if you are not experienced with it or if you don't feel comfortable working with gas and electricity.

Probably should call a local 'handy-man' at the least to perform the task or a local HVAC service company.

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Do NOT overtighten the thermocouple connection into the gas valve as you can damage the gas valve by doing so. Make sure you leak test the pilot tube connection after it is reconnected to the gas valve. A diluted solution of dishwashing liquid dashed around the ferrule of the pilot line should show bubbles if there is a leak. No gas will be in that line unless the pilot button is depressed and/or the pilot light is lit and burning.

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Marty, I would really like to help you, but the DESA/Comfort Glow Model Number you listed is incorrect. Please check & confirm it and get back to me.

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