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Old 09-08-2018, 11:33 AM   #1
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Default Water heater/furnace problems

Hello I hope someone can help me here, I have a 2002 great west van, Dodge Ram 3500, I have had trouble with my furnace, which now just blows cold air, I just forgot about it after not really needing it, but last night I turned my water heater on for the first time, waited 30 mins, turned my tap on, and it’s just cold water, my question is, is the furnace and water heater connected together? And why are they not giving heat? When I turn furnace on, all works fine, but blows cold air. Is this a fuse, or maybe converter? How can I tell?
Thanks in advance, ive checked my fuses, all seem to be ok
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Old 09-08-2018, 12:01 PM   #2
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Do the frig and stove work on propane and function OK.
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Old 09-08-2018, 12:52 PM   #3
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Yes I can take some photos, what shall I photograph exactly?
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Old 09-08-2018, 12:55 PM   #4
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I’ve never used either of them, fridge I had working plugged into house, stove I’ve never used, it’s lpg.
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Old 09-08-2018, 12:56 PM   #5
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Just seems odd tht both are not working, I just thought they might be connected
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Old 09-08-2018, 01:57 PM   #6
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Make and model of the furnace? Heater?
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Old 09-08-2018, 01:59 PM   #7
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It’s nothing to do with propane, my furnace just normally works off thermostat , no propane, I just turn it on, but as I say, it’s blowing cold air
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Old 09-08-2018, 06:15 PM   #8
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Are you saying that there's NO propane in your van. It appears only recent that mfgs are getting away from using propane completely. I don't know your van, though. On my 1997 PleasureWay (not too much older than yours) the heater is LP but the blower is, of course, electric. The only thing that I turn on for mine is the wall thermostat also. What happens is that the blower starts and the air it's putting out pushes open a "fan" switch which opens the gas valve and triggers an electronic module which lights the gas. If neither the fan switch or the module is faulty, you won't get a light/heat....only unheated air from the blower.
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Old 09-08-2018, 06:16 PM   #9
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That should have read "If either...."
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Old 09-08-2018, 08:39 PM   #10
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Quote:
Originally Posted by GallenH View Post
Are you saying that there's NO propane in your van. It appears only recent that mfgs are getting away from using propane completely. I don't know your van, though. On my 1997 PleasureWay (not too much older than yours) the heater is LP but the blower is, of course, electric. The only thing that I turn on for mine is the wall thermostat also. What happens is that the blower starts and the air it's putting out pushes open a "fan" switch which opens the gas valve and triggers an electronic module which lights the gas. If neither the fan switch or the module is faulty, you won't get a light/heat....only unheated air from the blower.
On my RV, I also have to switch on the propane valve, or the furnace never gets gas to ignite. The furnace will continue to blow cold air and the ignitor keeps trying to light the gas that's not being delivered unless the propane valve is switched on.

What brand/model of heater? What brand/model of water heater?
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