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 > Your search for posts made by 'oldmanriver809' found 6 matches.

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RE: Atwood 8531-IV furnace problems please help

So I bit the bullet, removed my furnace and took it to a RV Technician. He preformed a bench test on it and was able to see everything working well. He said he blew out the combustion chamber and the connections with air but that was all he had to do for it to work. I brought it back and installed it and it still didn’t work but when I was at his shop I noticed that he had connected the two blue wires for the bench test so I did that and it worked. By doing this it apparently bypasses the thermostat. I then quickly ordered a new thermostat, installed it, and it works great! So now I have a nice warm 5th wheel:) Thank you guys who responded to my post with suggestions and insights. Happy camping!! Stay warm.
oldmanriver809 10/31/20 08:23am Fifth-Wheels
RE: Atwood 8531-IV furnace problems please help

Ok so I checked the Sail Switch with a voltmeter. When I turned on the furnace and the fan was running I had 12 volts, (12.97v) on one side of the Sail switch. I checked the other side with the switch physically pushed with my hand to simulate the fan blowing it and didn’t have 12 volts on the other side. I tried jumping the switch and then starting the furnace but that didn’t allow the furnace to turn on at all. Could it be my thermostat? The air conditioner works fine though.
oldmanriver809 10/09/20 07:22pm Fifth-Wheels
RE: Atwood 8531-IV furnace problems please help

Thanks for the response dougrainer and topjimmy! I m heading out to get a voltmeter then I will check the voltage in and out of the new sail switch I have already installed.
oldmanriver809 10/09/20 02:55pm Fifth-Wheels
RE: Atwood 8531-IV furnace problems please help

I’m not sure if my model furnace has one of those relay delay’s on it? I only saw a reset switch other than the board and nothing attached to the outside of the fan housing where other models have it attached.
oldmanriver809 10/09/20 08:26am Fifth-Wheels
RE: Atwood 8531-IV furnace problems please help

Thank you goff1256 I will definitely look into that after work today!
oldmanriver809 10/09/20 04:37am Fifth-Wheels
Atwood 8531-IV furnace problems please help

I’m having problems with my Atwood 8531-IV furnace. It will not ignite. The fan runs for 30 seconds then stops for a few seconds then starts back up and will do this over and over but I do not hear the gas valve clicking or the electrode sparking. I’ve tested the gas valve using a 12 volt jumper wire and both solenoids click when I attached the jumper wires. I have already bought and changed the main board, the sail switch, and the limit switch because I figured the gas valve and the electrode weren’t getting power to them. I tried to see if the gas valve and electrode were getting any power sent to them by attaching a test light to the connection but the test light never illuminated when the furnace was cycling. The nights are getting real cold and I am at a loss.. any help would be greatly appreciated. Thanks in advance, Jeff 2008 Jayco Eagle
oldmanriver809 10/08/20 05:50pm Fifth-Wheels
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