Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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I have a coleman presidential model#7670 series#856 home heater,which is set up to run natural gas. I need to switch it to propane gas, do I only need to change the orifice?

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NO, the regulator in the valve MUST be converted too!

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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I need the wiring diagram for a colemen presidential. 7700 heating only furnace model 7700B series 856


Try this link: https://www.google.com/search?newwindow=1&client=firefox-a&rls=org.mozilla:en-US:official&channel=sb&tbm=isch&q=wiring+diagram+for+a+coleman+presidential.+7700+heating+only+furnace+model+7700B+series+856&spell=1&sa=X&ei=2BxgVNeTL4GzyAT114DQAw&ved=0CBsQBSgA&dpr=1&biw=1280&bih=661#facrc=_&imgdii=j33zYJKetrRZNM%3A%3BQwlvLKBRQkbPMM%3Bj33zYJKetrRZNM%3A&imgrc=j33zYJKetrRZNM%253A%3Byv4vNEhfvEIQ1M%3Bhttp%253A%252F%252Fmobilehomefurnace.com%252Fzcart%252Fimages%252Fart150.bmp%3Bhttp%253A%252F%252Fmobilehomefurnace.com%252Fzcart%252Findex.php%253Fmain_page%253Dproduct_info%2526cPath%253D767_768_769%2526products_id%253D14583%3B1154%3B766

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1 Answer

Hayward H series propane pool heater, how do I convert to gas?.


I used to be able to get it through my supplier but the link is now dead and shows product not available. I am sure you can get this through Hayward direct. The last kit I bought was around $200 (my cost, not retail). As for a used kit, I seriously doubt that is an option.

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yOU CAN PURCHASE FILTER MATTING AT ANY HARDWARE store and cut to size. Its cheaper anyway.. It comes in rolls.

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1 Answer

Need replacement glass for pilot cover of Coleman Presidential II


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Feb 05, 2009 | Coleman Propane Forced Air Heater...

1 Answer

Coleman presidential II furnace blower on and off


Sounds like the flame sensor. But it could be the thermostat. Is the furnace standing pilot or electronic spark or hot surface ignition. I would start by checking thermostat. Turn power off to furnace take thermostat off wall and take wires marked r & w and connect them together. Turn power back on if furnace works then change out thermostat.Most eclectronic ignition Furnaces have a flam sensor, You could take flame sensor out and clean it up with steel wool or wire brush. If you need anymore help just reply back .

Jan 17, 2009 | Coleman Propane Forced Air Heater...

1 Answer

Coleman Presidential II Heater won't come on


You should have 3 wires going to the gas valve - MV(mainvalve), PV(pilot valve) and MV/PV (or Common). Make sure all of these are properly wired and tight.
You also may have a dirty FLAME SENSOR on your pilot/ignitor assembly. You may need to remove the pilot tube and the pilot assembly to clean the sensor with sandpaper.
Be careful not to damage any parts while cleaning them. Be careful not to crossthread the gas line when re-installing it.

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